The occipital bone is a cranial bone located at the back of the cranium. It articulates with 5 cranial bones (6): 2 Parietal bones, 2 Temporal bones, 1 Sphenoid bone.
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The occipital bone consists of four parts that surround the Foramen Magnum. These parts are known as the Squamous part, the Basilar part, and two Lateral Parts (3,6).
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The Foramen Magnum is a hole that provides a passageway for the brainstem, nerves, and vessels. It is encompassed by the four constituent parts of the occipital bone: the Squamous part, the Basilar part, and two Lateral Parts.. (3,7).
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The basilar part of the occipital bone is located at the foremost region of the occipital bone, situated ahead of the foramen magnum. (3,7)
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Pharyngeal tubercle is a prominence located on the lower surface of the basilar portion of the occipital bone, positioned before the foramen magnum. (3,8)
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The lateral part of the occipital bone is the part of the bone that is positioned on either side of the foramen magnum. (3,7)
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The jugular tubercle is an oval prominence located on the upper surface of each lateral part. (3)
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The Jugular notch of the occipital bone is a hollowed-out area positioned in front of the jugular process. It takes part in the formation of the jugular foramen. (1,3,7)
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The jugular process is a protrusion situated on the side of the occipital condyle. (3,7,8)
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The Intrajugular process of the occipital bone is a bony spike that splits the jugular notch into two sections. Occasionally it helps form a septum within the jugular foramen. (3,9)
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The Occipital condyle is located on the inferior aspect of the lateral part of the occipital bone on either side of the Foramen Magnum. It serves for articulation with the first vertebra. (3,8)
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The Condylar canal is a tunnel with an entrance in the condylar fossa. It passes through the lateral part of the occipital bone. (3,7,9)
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The Hypoglossal canal is a tunnel originating just above the foramen magnum. It ends anterolaterally to the condyle. (3,7)
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The condylar fossa is a hollow space found behind each occipital condyle. (3,8)
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The squamous part of the occipital bone is the part that occupies the most posterior position. It is the largest portion of the bone, located behind the foramen magnum. (1,7)
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The external occipital protuberance is positioned at the midpoint of the squamous part; it aligns along the midline of the external part of the occipital bone. (1,6)
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The External occipital crest is a variable structure positioned between the external occipital protuberance and the posterior border of the foramen magnum. (7,8)
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The supreme nuchal line is the most superior line extending from the external occipital protuberance. (1,7)
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The superior nuchal line is a horizontal ridge extending laterally on either side at the same level as the external occipital protuberance. (7,8)
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The Inferior nuchal line is a horizontal ridge extending from the center of the external occipital crest. It is located inferiorly to the superior nuchal line. (1,8)
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The occipital plane is an area of the external surface of the squamous part that extends above the supreme nuchal line. (1)
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The cruciform eminence is a structure situated on the internal surface of the squamous part that divides this surface of the squamous part into four fossae (two superior and two inferior). (1,8)
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The internal occipital protuberance is a rounded elevation positioned in the middle of the cruciform eminence. (1,8)
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The internal occipital crest is the lower division of the cruciate eminence. (1,8)
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The groove for transverse sinus is a groove that runs horizontally on either side of the horizontal divisions of the Cruciform eminence. (1,8)
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The groove for occipital sinus is a groove along the internal occipital crest. It extends from the internal occipital protuberance to the foramen magnum. (1,8,10)
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The groove for the marginal sinus is a groove that extends along the inferior margin of the foramen magnum. (8,11)
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There are two cerebral fossae on either side of the sagittal sulcus, delimited by the cruciform eminence. (1,8)
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There are two cerebellar fossae on either side of the internal occipital crest, with the inferior fossae delimited by the cruciform eminence. (1,8)
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The Vermian fossa is a small depression located in the lower part of the internal occipital crest. (2,12)
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The parietal bone is a paired bone that is positioned on the superolateral aspect of the cranium. It articulates with the frontal bone, the occipital bone, the temporal bone, the sphenoid bone, and with the opposite parietal bone.
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The internal surface of the parietal bone is oriented towards the brain. It presents multiple indentations and grooves.
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The groove for middle meningeal artery is a groove on the parietal bone’s internal surface.
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The external surface of the parietal bone is oriented towards the scalp. It is smooth and convex.
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The superior temporal line is an arched line that is positioned on the middle aspect of the bone.
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The inferior temporal line is an arched line positioned inferior to the superior temporal line.
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The parietal tuber or parietal eminence is a convex area positioned on the external surface of the bone.
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The squamous border is the inferior border of the parietal bone and articulates with multiple bones. Anteriorly with the greater wing of the sphenoid, in the middle with the squamous portion of the temporal bone, and its posterior part with the mastoid portion of the temporal bone.
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The frontal border is the anterior border of the bone and it articulates with the frontal bone.
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The frontal angle is the anterior and superior angle. It is positioned where the sagittal and coronal sutures meet.
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The sphenoidal angle is the anterior and inferior angle; it articulates with the frontal bone and the great wing of the sphenoid.
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The mastoid angle is the posterior and inferior angle; it articulates with the occipital bone and with the mastoid portion of the temporal bone.
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It is an opening that varies in size; it is positioned posterior, close to the sagittal border.
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The occipital angle is the posterior and superior angle and is situated where the sagittal and lambdoidal sutures meet—a point termed the lambda.
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The occipital border of the parietal bone is represented by the border that articulates with the occipital bone.
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The sagittal border is the longest and articulates with the sagittal border of the opposite parietal bone.
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The temporal bone is a cranial bone situated on the lateral sides and base of the skull. It articulates with several bones including the parietal, occipital, sphenoid, zygomatic, and mandible bones.
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The petrous part of the temporal bone is shaped like a pyramid with an apex, three surfaces, and three borders. It is oriented with its base laterally.
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The squamous part of the temporal bone is the flat, thin section of the bone that is located superior to the petrous and tympanic parts. It articulates with the parietal bone.
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The tympanic part of the temporal bone is the portion that contributes to the ear canal. It is located inferior to the squamous part of the temporal bone.
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The petrous part of the temporal bone is shaped like a pyramid with an apex, three surfaces, and three borders. It is oriented with its base laterally.
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The occipital margin of the temporal bone is represented by the posterior border of the petrous part of the temporal bone.
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The mastoid process is a bony projection located on the outer surface of the posterior part of the bone.
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The mastoid notch is a groove located on the inferior surface of the bone, on the medial side of the mastoid process.
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The groove for the occipital artery is a shallow groove that is positioned posterior to the mastoid notch of the temporal bone.
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The mastoid foramen is an opening that is located posterior to the mastoid process of the temporal bone.
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The apex of the petrous part is the tip of the petrous part of the temporal bone. It articulates in an angle created by the greater wing of the sphenoid bone and the basilar part of the occipital bone.
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The carotid canal is a tunnel that starts from the inferior surface of the petrous bone and opens on the apex of the petrous part of the temporal bone.
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The external opening of the carotid canal is situated on the inferior surface of the petrous part of the temporal bone medial to the jugular fossa.
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The internal opening of the carotid canal is situated on the apex of the petrous part of the temporal bone.
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The musculotubal canal is divided into 2 semicanals by a bony septum. It leads into the tympanic cavity and opens anterior to the external opening of the carotid canal.
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The semicanal for tensor tympani is the upper canal of the 2 musculotubal canals. It transmits the tensor tympani muscle.
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The semicanal for the auditory tube is the lower canal of the 2 musculotubal canals. It transmits the auditory tube.
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The septum of the musculotubal canal is a thin bony plate that divides the musculotubal canal into 2 semicanals.
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The anterior surface of the petrous part contributes to the formation of the middle fossa of the skull base.
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Tegmen tympani is a depression located anterolaterally to the arcuate eminence.
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The arcuate eminence is a bulge located near the center of the anterior surface of the petrous part.
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The hiatus for the greater petrosal nerve is an opening on the anterior surface of the petrous part that gives passage to the greater superficial petrosal nerve.
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The groove for the greater petrosal nerve is a shallow groove, obliquely oriented on the anterior surface of the petrous part. This groove leads to the hiatus of the greater petrosal nerve.
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The hiatus for the lesser petrosal nerve is an opening located lateral to the hiatus of the greater petrosal nerve. It gives passage to the lesser petrosal nerve.
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The groove for the lesser petrosal nerve is a shallow groove that sometimes runs parallel to the groove for the greater petrosal nerve. It is situated anterior to the hiatus for the lesser petrosal nerve.
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The trigeminal impression is a depression situated on the anterior surface of the petrous part of the temporal bone. It is positioned medially towards the apex of the petrous part.
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The petrous ridge is the grooved border situated superiorly.
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The groove for the superior petrosal sinus is a groove situated along the superior border of the petrous part of the temporal bone.
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The inferior surface of the petrous part is a rough, irregular surface that contributes to the formation of the exterior base of the skull.
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The jugular fossa is a depression located on the inferior surface of the petrous part, located laterally to the external opening of the carotid canal.
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The intrajugular process of the temporal bone is a bone spicule that occasionally projects from the jugular foramen. Its union with the occipital bone’s intrajugular process results in a bridge that divides the jugular foramen into two compartments.
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The styloid process of the temporal bone is a sharp bony process situated lateral to the jugular fossa.
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The stylomastoid foramen represents the termination of the facial canal. Its opening is located posterior to the styloid process.
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The inferior tympanic canaliculus is a small tunnel with its opening in the bony ridge between the external opening of the carotid canal and the jugular fossa.
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The petrosal fossula is a depression located between the jugular fossa and the external opening of the carotid canal.
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The tympanic part of the temporal bone is a curved area anterior to the mastoid process.
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The bony external acoustic opening is the opening of the external acoustic meatus.
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The bony external acoustic meatus is an approximately 1 cm long oval canal. It is formed by the tympanic part and by the squama.
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The sheath of the styloid process is a sheet that extends posteriorly from the carotid canal, encircling the styloid process.
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The squamous part of the temporal bone is the anterosuperior part of the bone. It has two surfaces: an outer surface (temporal surface of temporal bone) and an internal surface.
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The parietal border of the temporal bone is the superior border, and its edge is beveled and articulates with the parietal bone.
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The parietal notch is located posteriorly in the angle formed by the parietal border with the superior border of the mastoid part.
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The sphenoidal margin of the temporal bone is the anteroinferior border. It articulates with the sphenoid (greater wing).
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The temporal surface of the temporal bone refers to the outer portion of the temporal bone, which is smooth and convex.
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The zygomatic process of the temporal bone is an arched projection extending from the squama. It has two roots and takes part in the formation of the zygomatic arch.
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The supramastoid crest is located in the posterior part of the squamous part of the temporal bone. It is the continuation of the zygomatic process of the temporal bone.
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The suprameatal fovea is a small depression located between the posterior wall of the external acoustic meatus and the posterior root of the zygomatic process on the temporal bone.
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The suprameatal spine is located between the external acoustic meatus and the root of the posterior root of the zygomatic process.
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The mandibular fossa is a concave depression on the temporal bone that forms part of the temporomandibular joint, where it articulates with the mandible’s condyle.
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It is the anterior part of the mandibular fossa.
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The articular tubercle is a rounded eminence located at the end of the zygomatic process of the temporal bone (posterior root), anterior to the mandibular fossa.
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The cerebral surface of the squamous part of the temporal bone is the internal surface of the squamous part of the temporal bone. This surface faces the brain.
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The petrotympanic fissure is situated between the mandibular fossa and the tympanic part, posterior to the petrosquamous fissure.
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The petrosquamous fissure is situated between the mandibular fossa and the tympanic cavity, anterior to the petrotympanic fissure.
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The tympanosquamous fissure is situated between the tympanic part and the squama. It continues the petrosquamous fissure and petrotympanic fissure laterally.
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The tympanomastoid fissure is a fissure formed by the posterior edge of the tympanic part and the mastoid.
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The sphenoid bone is situated at the base of the skull. It consists of a body, two great wings, two small wings, and two pterygoid processes.
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Two lesser wings originate on the superior anterior part of the body of the sphenoid. They are triangular and project laterally.
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The greater wings are two curved processes that originate on the lateral side of the body of the sphenoid.
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The pterygoid processes are two bony processes that originate in the area where the body meets the great wings. Each pterygoid process consists of a lateral and medial plate fused anterosuperiorly.
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The body of the sphenoid is shaped like a cube and is hollow on the inside.
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The sphenoidal yoke is an elevated surface located on the superior surface of the sphenoidal body. It is positioned on the midline between the lesser wings at the point where they meet each other.
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The limbus of the sphenoid is the border that bounds the sphenoidal yoke posteriorly.
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The chiasmatic sulcus is a horizontal groove positioned behind the sphenoid bone’s limbus.
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The sella turcica is a depression located posterior to the chiasmic sulcus.
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The tuberculum sellae is a prominence located anterior to the sella turcica and posterior to the chiasmic sulcus.
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The middle clinoid processes are small elevations located on either side of the tuberculum sellae.
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The hypophysial fossa is the deepest part of the sella turcica. It houses the pituitary gland.
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The anterior clinoid processes are two bony prominences on either side of the lesser wings. They are positioned on the medial end of the lesser wings’ posterior border.
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The carotid sulcus is a broad groove on the body’s lateral surface. It lodges the carotid artery and the cavernous sinus.
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The cerebral surface of the greater wing is the superior surface of a great sphenoidal wing. It takes part in forming the middle fossa of the skull.
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The chiasmatic sulcus is a horizontal groove positioned behind the sphenoid bone’s limbus.
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The dorsum sellae is a bony plate that represents the posterior border of the sella turcica.
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The foramen ovale is an oval-shaped foramen that is located posterolaterally to the foramen rotundum. It gives passage to the mandibular nerve and accessory meningeal artery.
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The foramen rotundum is located on the anteriomedial part of the greater wing. It gives passage to the maxillary nerve.
No images available for this section (Foramen_rotundum).
Foramen spinosum is a short tunnel located at the posterior angle of the cerebral surface of the greater wing, anterior to the spine of the sphenoid bone.
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The groove of the pterygoid hamulus is a groove situated on the hamulus.
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The hypophysial fossa is the deepest part of the sella turcica. It houses the pituitary gland.
No images available for this section (Hypophysial_fossa_duplicate).
Two lesser wings originate on the superior anterior part of the body of the sphenoid. They are triangular and project laterally.
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The limbus of the sphenoid is the border that bounds the sphenoidal yoke posteriorly.
No images available for this section (Limbus_of_sphenoid_duplicate).
The middle clinoid processes are small elevations located on either side of the tuberculum sellae.
No images available for this section (Middle_clinoid_process_duplicate).
The opening of the sinus of sphenoid bone is an irregular opening found on either side of the sphenoidal crest.
No images available for this section (Opening_of_sinus_of_sphenoid_bone).
The pterygoid canal is the tunnel that passes through the base of the pterygoid process. It has an anterior orifice opening on the anterior surface and a posterior orifice that opens on the posterior surface.
No images available for this section (Pterygoid_canal_duplicate).
The pterygoid fossa is a fossa that is located posteriorly on the pterygoid process.
No images available for this section (Pterygoid_fossa_duplicate).
The pterygoid hamulus is a hook-like process that is located at the inferior end of the medial pterygoid plate.
No images available for this section (Pterygoid_hamulus_duplicate).
The pterygoid notch is a slit that is located at the inferior part of the pterygoid processes. It separates the lateral plate from the medial plate.
No images available for this section (Pterygoid_notch_duplicate).
The sphenoidal conchae are two curved bony plates on either side of the crest covering the sinuses. On their upper part is the opening of the sinus of the sphenoid bone that leads into the sinus.
No images available for this section (Sphenoidal_concha).
The sphenoidal crest is a bony ridge located on the body’s anterior surface on the midline. It articulates with the perpendicular plate of the ethmoid.
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The sphenoidal emissary foramen is an inconstant small aperture located medial to the foramen ovale.
No images available for this section (Sphenoidal_emissary_foramen).
The sphenoidal lingula is a bony ridge located on the posterior part of the lateral surface, on the lateral margin of the carotid sulcus.
No images available for this section (Sphenoidal_lingula).
The sphenoidal rostrum is a spine found on the inferior surface of the body of the sphenoid. It continues the sphenoidal crest and articulates with the vomer.
No images available for this section (Sphenoidal_rostrum).
The sinus of the sphenoid bone is an irregular cavity found inside the sphenoid bone’s body. A thin bony plate separates the two sinuses.
No images available for this section (Sinus_of_sphenoid_bone_duplicate).
The septum of sphenoidal sinuses is a thin bony lamina that separates the sinuses of the sphenoid bone from one another.
No images available for this section (Septum_of_sphenoidal_sinuses).
The sphenoidal yoke is an elevated surface located on the superior surface of the sphenoidal body. It is positioned on the midline between the lesser wings at the point where they meet each other.
No images available for this section (Sphenoidal_yoke_duplicate).
The spine of the sphenoid bone is an irregular projection that is positioned lateral to the foramen spinosum.
No images available for this section (Spine_of_sphenoid_bone).
The Greater wings are two curved processes that originate on the lateral side of the body of the sphenoid.
No images available for this section (Greater_wing_duplicate).
The temporal surface of the greater wing is the surface that is located on the lateral surface of the greater wing, above the infratemporal crest. It takes part in the formation of the temporal fossa.
No images available for this section (Temporal_surface_of_greater_wing).
The infratemporal surface of the greater wing is the surface located below the infratemporal crest on the lateral surface of the greater wing. It takes part in the formation of the infratemporal fossa. On this surface, we can find the openings foramen ovale and foramen spinosum.
No images available for this section (Infratemporal_surface_of_greater_wing).
The infratemporal crest is a ridge that divides the lateral surface of the greater wing of the sphenoid bone into two surfaces. The upper surface is the temporal surface of the greater wing, and the lower surface is the infratemporal surface of the greater wing.
No images available for this section (Infratemporal_crest).
It is the surface of the greater wing that is oriented towards the maxilla bone.
No images available for this section (Maxillary_surface_of_greater_wing).
The orbital surface of the greater wing is a smooth surface that forms the lateral wall and the posterior part of the orbit.
No images available for this section (Orbital_surface_of_greater_wing).
The zygomatic margin is the margin that articulates with the zygomatic bone.
No images available for this section (Zygomatic_margin_of_greater_wing).
The frontal margin is the margin that articulates with the frontal bone.
No images available for this section (Frontal_margin_of_greater_wing).
The parietal margin is the margin that articulates with the parietal bone.
No images available for this section (Parietal_margin_of_greater_wing).
The squamosal margin is the margin that articulates with the temporal bone.
No images available for this section (Squamosal_margin_of_greater_wing).
The pterygoid processes are two bony processes that originate in the area where the body meets the great wings. Each pterygoid process consists of a lateral and medial plate fused anterosuperiorly.
No images available for this section (Pterygoid_process_duplicate).
The lateral pterygoid plate is the thin plate that is located laterally. Its lateral surface takes part in forming the infratemporal fossa, and its medial surface takes part in forming the pterygoid fossa.
No images available for this section (Lateral_pterygoid_plate).
The medial pterygoid plate is the plate that is located medially. The lateral surface takes part in the formation of the pterygoid fossa.
No images available for this section (Medial_pterygoid_plate).
The pterygoid notch is a slit that is located at the inferior part of the pterygoid processes. It separates the lateral plate from the medial plate.
No images available for this section (Pterygoid_notch_duplicate).
The pterygoid fossa is a fossa that is located posteriorly on the pterygoid process.
No images available for this section (Pterygoid_fossa_duplicate).
The scaphoid fossa is a shallow, oval depression on the medial surface of the greater wing of the sphenoid bone.
No images available for this section (Scaphoid_fossa).
The pterygoid canal is the tunnel that passes through the base of the pterygoid process. It has an anterior orifice opening on the anterior surface and a posterior orifice that opens on the posterior surface.
No images available for this section (Pterygoid_canal_duplicate).
The pterygospinous process is a pointed projection located on the rear border of the sphenoid bone's lateral pterygoid plate.
No images available for this section (Pterygospinous_process).
The vaginal processes of the sphenoid bone are two bony projections found on each side of the sphenoidal rostrum. They articulate with the sphenoidal process of the palatine bone and the ala of the vomer.
No images available for this section (Vaginal_process_of_sphenoid_bone).
The palatovaginal groove, located on the sphenoid bone, gives rise to the palatovaginal canal by connecting the palatine bone with the vaginal process of the sphenoid bone.
No images available for this section (Palatovaginal_groove).
The vomerovaginal groove, located on the pterygoid process, forms the vomerovaginal canal when it is joined by the vomer bone.
No images available for this section (Vomerovaginal_groove).
The pterygoid hamulus is a hook-like process that is located at the inferior end of the medial pterygoid plate.
No images available for this section (Pterygoid_hamulus_duplicate).
The groove of the pterygoid hamulus is a groove situated on the hamulus.
No images available for this section (Groove_of_pterygoid_hamulus_duplicate).
The posterior clinoid process are two prominences on either side of the upper margin of the dorsum sellae.
No images available for this section (Posterior_clinoid_process).
The optic canal is a tunnel located on either side of the prechiasmatic groove. It communicates with the orbit and gives passage to the optic nerve and the ophthalmic artery.
No images available for this section (Optic_canal).
The Ethmoid bone articulates with the Frontal Bone, Sphenoid Bone, Vomer, Inferior Nasal Concha, Palatine Bones, Lacrimal Bones, Nasal Bones, and Maxillae Bones.
No images available for this section (The_Ethmoid_bone).
The cribriform plate is the horizontal part of the bone. Received in the ethmoidal notch of the frontal bone, it is deeply grooved and supports the olfactory bulb.
No images available for this section (Cribriform_Plate).
The cribriform foramina are holes in the cribriform plates that give passage to nerves of the olfactory bulb.
No images available for this section (Cribriform_Foramina).
The crista galli is a bony projection located on the midline of the cribriform plate. It gives attachment to the falx cerebri.
No images available for this section (Crista_Galli).
The ala of crista galli are located on the anterior border of crista galli. They articulate with the frontal bone.
No images available for this section (Ala_of_Crista_Galli).
The perpendicular plate of ethmoid bone is a thin bony plate that originates on the inferior surface of the cribriform plate.
No images available for this section (Perpendicular_Plate_of_Ethmoid_Bone).
Ethmoidal labyrinths are two lateral masses located parallel on either side of the perpendicular plate. There are thin-walled air-filled cavities present in the labyrinth.
No images available for this section (Ethmoidal_Labyrinth).
They are multiple chambers located within the ethmoidal labyrinth grouped into three main groups. The anterior cells, the middle cells, and the posterior cells.
No images available for this section (Cells_of_Ethmoid_Bone).
The anterior cells of the ethmoid bone are the most anterior group of ethmoidal cells present in the perpendicular plate. The lacrimal bone covers them.
No images available for this section (Anterior_Cells_of_Ethmoid_Bone).
The middle cells of the ethmoid bone are the ethmoidal cells located between the anterior and posterior groups. Situated in the ethmoidal labyrinth, they are covered by the orbital plate of the ethmoid bone.
No images available for this section (Middle_Cells_of_Ethmoid_Bone).
The posterior cells of the ethmoid bone are the most posterior group of ethmoidal cells present in the ethmoid bone. The orbital plate of the ethmoid bone covers them.
No images available for this section (Posterior_Cells_of_Ethmoid_Bone).
Orbital plate of ethmoidal labyrinth is a thin bony plate that covers the middle and the posterior cells of the ethmoid bones and takes part in the formation of the medial wall of the orbit.
No images available for this section (Orbital_Plate_of_Ethmoidal_Labyrinth).
The bony ethmoidal bulla is a notable and enlarged structure found in the ethmoid bone.
No images available for this section (Bony_Ethmoidal_Bulla).
The uncinate process of the ethmoid bone is a curved lamina positioned anteriorly that descends posteroinferiorly. It articulates with the ethmoidal process of the inferior nasal concha.
No images available for this section (Uncinate_Process_of_Ethmoid_Bone).
The bony ethmoidal infundibulum is a passage that opens into the middle ethmoidal cells.
No images available for this section (Bony_Ethmoidal_Infundibulum).
The bony semilunar hiatus is a space between the ethmoidal bulla’s anterior wall and the uncinate process’s free edge.
No images available for this section (Bony_Semilunar_Hiatus).
The bony superior nasal concha is a thin curved plate positioned superiorly on the medial surface of the ethmoid bone.
No images available for this section (Bony_Superior_Nasal_Concha).
The bony middle nasal concha is the inferior convoluted margin of the medial surface of the labyrinth of the ethmoid bone.
No images available for this section (Bony_Middle_Nasal_Concha).
The cribriform sulcus is a horizontal groove positioned behind the sphenoid bone’s limbus.
No images available for this section (Cribriform_sulcus_duplicate).
The dorsum sellae is a bony plate that represents the posterior border of the sella turcica.
No images available for this section (Dorsum_sellae).
The foramen ovale is an oval-shaped foramen that is located posterolaterally to the foramen rotundum. It gives passage to the mandibular nerve and accessory meningeal artery.
No images available for this section (Foramen_ovale).
The foramen rotundum is located on the anteriomedial part of the greater wing. It gives passage to the maxillary nerve.
No images available for this section (Foramen_rotundum).
Foramen spinosum is a short tunnel located at the posterior angle of the cerebral surface of the greater wing, anterior to the spine of the sphenoid bone.
No images available for this section (Foramen_spinosum).
The groove of the pterygoid hamulus is a groove situated on the hamulus.
No images available for this section (Groove_of_pterygoid_hamulus).
The cribriform sulcus is a horizontal groove positioned behind the sphenoid bone’s limbus.
No images available for this section (Cribriform_sulcus_duplicate).
The hypophysial fossa is the deepest part of the sella turcica. It houses the pituitary gland.
No images available for this section (Hypophysial_fossa_duplicate).
Two lesser wings originate on the superior anterior part of the body of the sphenoid. They are triangular and project laterally.
No images available for this section (Lesser_wing_duplicate).
The limbus of the sphenoid is the border that bounds the sphenoidal yoke posteriorly.
No images available for this section (Limbus_of_sphenoid_duplicate).
The middle clinoid processes are small elevations located on either side of the tuberculum sellae.
No images available for this section (Middle_clinoid_process_duplicate).
The opening of the sinus of sphenoid bone is an irregular opening found on either side of the sphenoidal crest.
No images available for this section (Opening_of_sinus_of_sphenoid_bone).
The pterygoid canal is the tunnel that passes through the base of the pterygoid process. It has an anterior orifice opening on the anterior surface and a posterior orifice that opens on the posterior surface.
No images available for this section (Pterygoid_canal_duplicate).
The pterygoid fossa is a fossa that is located posteriorly on the pterygoid process.
No images available for this section (Pterygoid_fossa_duplicate).
The pterygoid hamulus is a hook-like process that is located at the inferior end of the medial pterygoid plate.
No images available for this section (Pterygoid_hamulus_duplicate).
The pterygoid notch is a slit that is located at the inferior part of the pterygoid processes. It separates the lateral plate from the medial plate.
No images available for this section (Pterygoid_notch_duplicate).
The sphenoidal conchae are two curved bony plates on either side of the crest covering the sinuses. On their upper part is the opening of the sinus of the sphenoid bone that leads into the sinus.
No images available for this section (Sphenoidal_concha).
The sphenoidal crest is a bony ridge located on the body’s anterior surface on the midline. It articulates with the perpendicular plate of the ethmoid.
No images available for this section (Sphenoidal_crest).
The sphenoidal emissary foramen is an inconstant small aperture located medial to the foramen ovale.
No images available for this section (Sphenoidal_emissary_foramen).
The sphenoidal lingula is a bony ridge located on the posterior part of the lateral surface, on the lateral margin of the carotid sulcus.
No images available for this section (Sphenoidal_lingula).
The sphenoidal rostrum is a spine found on the inferior surface of the body of the sphenoid. It continues the sphenoidal crest and articulates with the vomer.
No images available for this section (Sphenoidal_rostrum).
The sinus of the sphenoid bone is an irregular cavity found inside the sphenoid bone’s body. A thin bony plate separates the two sinuses.
No images available for this section (Sinus_of_sphenoid_bone_duplicate).
The septum of sphenoidal sinuses is a thin bony lamina that separates the sinuses of the sphenoid bone from one another.
No images available for this section (Septum_of_sphenoidal_sinuses).
The sphenoidal yoke is an elevated surface located on the superior surface of the sphenoidal body. It is positioned on the midline between the lesser wings at the point where they meet each other.
No images available for this section (Sphenoidal_yoke_duplicate).
The spine of the sphenoid bone is an irregular projection that is positioned lateral to the foramen spinosum.
No images available for this section (Spine_of_sphenoid_bone).
The Greater wings are two curved processes that originate on the lateral side of the body of the sphenoid.
No images available for this section (Greater_wing_duplicate).
The temporal surface of the greater wing is the surface that is located on the lateral surface of the greater wing, above the infratemporal crest. It takes part in the formation of the temporal fossa.
No images available for this section (Temporal_surface_of_greater_wing).
The infratemporal surface of the greater wing is the surface located below the infratemporal crest on the lateral surface of the greater wing. It takes part in the formation of the infratemporal fossa. On this surface, we can find the openings foramen ovale and foramen spinosum.
No images available for this section (Infratemporal_surface_of_greater_wing).
The infratemporal crest is a ridge that divides the lateral surface of the greater wing of the sphenoid bone into two surfaces. The upper surface is the temporal surface of the greater wing, and the lower surface is the infratemporal surface of the greater wing.
No images available for this section (Infratemporal_crest).
It is the surface of the greater wing that is oriented towards the maxilla bone.
No images available for this section (Maxillary_surface_of_greater_wing).
The orbital surface of the greater wing is a smooth surface that forms the lateral wall and the posterior part of the orbit.
No images available for this section (Orbital_surface_of_greater_wing).
The zygomatic margin is the margin that articulates with the zygomatic bone.
No images available for this section (Zygomatic_margin_of_greater_wing).
The frontal margin is the margin that articulates with the frontal bone.
No images available for this section (Frontal_margin_of_greater_wing).
The parietal margin is the margin that articulates with the parietal bone.
No images available for this section (Parietal_margin_of_greater_wing).
The squamosal margin is the margin that articulates with the temporal bone.
No images available for this section (Squamosal_margin_of_greater_wing).
The pterygoid processes are two bony processes that originate in the area where the body meets the great wings. Each pterygoid process consists of a lateral and medial plate fused anterosuperiorly.
No images available for this section (Pterygoid_process_duplicate).
The lateral pterygoid plate is the thin plate that is located laterally. Its lateral surface takes part in forming the infratemporal fossa, and its medial surface takes part in forming the pterygoid fossa.
No images available for this section (Lateral_pterygoid_plate).
The medial pterygoid plate is the plate that is located medially. The lateral surface takes part in the formation of the pterygoid fossa.
No images available for this section (Medial_pterygoid_plate).
The pterygoid notch is a slit that is located at the inferior part of the pterygoid processes. It separates the lateral plate from the medial plate.
No images available for this section (Pterygoid_notch_duplicate).
The pterygoid fossa is a fossa that is located posteriorly on the pterygoid process.
No images available for this section (Pterygoid_fossa_duplicate).
The scaphoid fossa is a shallow, oval depression on the medial surface of the greater wing of the sphenoid bone.
No images available for this section (Scaphoid_fossa).
The pterygoid canal is the tunnel that passes through the base of the pterygoid process. It has an anterior orifice opening on the anterior surface and a posterior orifice that opens on the posterior surface.
No images available for this section (Pterygoid_canal_duplicate).
The pterygospinous process is a pointed projection located on the rear border of the sphenoid bone's lateral pterygoid plate.
No images available for this section (Pterygospinous_process).
The vaginal processes of the sphenoid bone are two bony projections found on each side of the sphenoidal rostrum. They articulate with the sphenoidal process of the palatine bone and the ala of the vomer.
No images available for this section (Vaginal_process_of_sphenoid_bone).
The palatovaginal groove, located on the sphenoid bone, gives rise to the palatovaginal canal by connecting the palatine bone with the vaginal process of the sphenoid bone.
No images available for this section (Palatovaginal_groove).
The vomerovaginal groove, located on the pterygoid process, forms the vomerovaginal canal when it is joined by the vomer bone.
No images available for this section (Vomerovaginal_groove).
The pterygoid hamulus is a hook-like process that is located at the inferior end of the medial pterygoid plate.
No images available for this section (Pterygoid_hamulus_duplicate).
The groove of the pterygoid hamulus is a groove situated on the hamulus.
No images available for this section (Groove_of_pterygoid_hamulus_duplicate).
The posterior clinoid process are two prominences on either side of the upper margin of the dorsum sellae.
No images available for this section (Posterior_clinoid_process).
The optic canal is a tunnel located on either side of the prechiasmatic groove. It communicates with the orbit and gives passage to the optic nerve and the ophthalmic artery.
No images available for this section (Optic_canal).
The frontal bone is a major bone of the cranium, and it forms the forehead, the roof of the orbits (eye sockets), and the anterior part of the cranial floor. It articulates with the sphenoid, ethmoid, two parietals, two nasals, two maxillae, two lacrimals, and two zygomatic bones.
No images available for this section (The_frontal_bone_disarticulated).
The external surface of the squamous part of the frontal bone is the outer surface of the squamous part of the frontal bone.
No images available for this section (External_surface_of_squamous_part_of_frontal_bone).
The frontal tuber or frontal eminence is a rounded elevation located approximately 3cm above the supraorbital margin. It is positioned on either side of the squama’s middle line.
No images available for this section (Frontal_eminence).
The two superciliary arches are elevations located just above the supraorbital margin.
No images available for this section (Superciliary_arch).
The glabella is an elevation located on the middle line between the superciliary arches.
No images available for this section (Glabella).
The frontal part of the orbital margin represents the lower boundary of the squama, and it separates the squama from the orbital part.
No images available for this section (Frontal_part_of_orbital_margin).
In some cases, the supraorbital notch presents as a hole rather than a notch; in these cases, it is named the supraorbital foramen.
No images available for this section (Supra-orbital_foramen).
The supraorbital notch is situated on the medial aspect of the supraorbital margin.
No images available for this section (Supra-orbital_notch).
The frontal notch is a depression located medial to the supraorbital notch.
No images available for this section (Frontal_notch).
In some cases, the frontal notch presents as a hole rather than a notch. In these cases, the frontal notch is named the frontal foramen.
No images available for this section (Frontal_foramen).
The temporal surface of the frontal bone is represented by the lateral surface.
No images available for this section (Temporal_surface_of_frontal_bone).
The parietal margin of the frontal bone is the border that is oriented posteriorly and connects to the parietal bones.
No images available for this section (Parietal_margin_of_frontal_bone).
It is a line that continues the zygomatic process upwards and backwards. It divides into the upper and the lower temporal lines.
No images available for this section (Temporal_line).
The zygomatic process of the frontal bone is the prominent structure that is situated at the lateral end of the supraorbital margin. It serves for the articulation with the zygomatic bone.
No images available for this section (Zygomatic_process_of_frontal_bone).
The frontal crest is a ridge located on the lower end of the midline that results from the union of the edges of the sagittal sulcus.
No images available for this section (Frontal_crest).
Foramen caecum is a foramen that results from the union of a small notch with the ethmoid bone. The notch is located at the inferior end of the frontal crest.
No images available for this section (Foramen_caecum_of_frontal_bone).
The nasal spine of the frontal bone is a bony projection that projects downwards from the center of the nasal part. It articulates with the nasal bones and with the perpendicular plate of the ethmoid bone.
No images available for this section (Nasal_spine_of_frontal_bone).
The nasal margin of the frontal bone is the lower border of the nasal part of the frontal bone. It articulates with the upper borders of the nasal bones.
No images available for this section (Nasal_margin_of_frontal_bone).
The orbital plates are the triangular plates that are positioned on either side of the ethmoidal notch.
No images available for this section (Orbital_plate_of_frontal_bone).
The orbital surface is the internal surface of the orbital plate.
No images available for this section (Orbital_surface_of_frontal_bone).
The trochlear spine is a small bony prominence located on the medial side of this surface.
No images available for this section (Trochlear_spine).
The trochlear fovea is a small depression located medially on the orbital surface of the frontal bone, next to the nasal part.
No images available for this section (Trochlear_fovea).
The fossa for the lacrimal gland is a shallow depression located laterally on the orbital surface of the frontal bone, next to the zygomatic process.
No images available for this section (Fossa_for_lacrimal_gland).
The sphenoidal margin is the margin that connects to the great wing of the sphenoid. It is triangular in shape.
No images available for this section (Sphenoidal_margin_of_frontal_bone).
The ethmoidal notch is the gap that separates the triangular plates. It is located on the midline of the orbital part. It articulates with the ethmoid bone.
No images available for this section (Ethmoidal_notch).
The sinuses of the frontal bone are two cavities situated in the frontal bone, irregular in shape and separated by a thin bone.
No images available for this section (Sinus_of_frontal_bone).
The opening of the frontal sinus is located on either side of the nasal spine of the frontal bone, just anterior to the ethmoidal notch.
No images available for this section (Opening_of_frontal_sinus).
The septum of frontal sinuses is a thin bony septum that separates the sinuses of the frontal bone.
No images available for this section (Septum_of_frontal_sinuses).
The lacrimal bone articulates with: The Frontal bone, the Ethmoid Bone, the Maxilla, the Inferior Nasal Concha.
No images available for this section (Lacrimal_bone-_Disarticulated_View).
The lacrimal bone is a small paired bone that is positioned on the anterior region of the medial part of the orbit.
No images available for this section (Lacrimal_Bone).
The posterior lacrimal crest is a vertical ridge that is located on the lateral surface of the bone.
No images available for this section (Posterior_Lacrimal_Crest).
The lacrimal groove of the lacrimal bone is a longitudinal groove located anterior to the posterior lacrimal crest.
No images available for this section (Lacrimal_Groove_of_Lacrimal_Bone).
The lacrimal hamulus is a hook-like projection that articulates with the maxilla.
No images available for this section (Lacrimal_Hamulus).
The nasal bone articulates with: The Ethmoid Bone, The Nasal Bone, The Maxilla, The Frontal Bone.
No images available for this section (Nasal_bone-_Disarticulated_view).
The ethmoidal groove is situated on the inferior surface of the nasal bone. The anterior ethmoidal artery and anterior ethmoidal nerve pass through it.
No images available for this section (Ethmoidal_Groove).
Nasal foramen is an opening that is positioned in the center of the nasal bone’s outer surface.
No images available for this section (Nasal_Foramen).
The Palatine bone articulates with: The Sphenoid bone, The Ethmoid, The Maxilla, The Inferior nasal concha, The Vomer, The Palatine Bone.
No images available for this section (Palatine_bone-_Disarticulated_view).
The palatine bone consists of a horizontal part, a vertical part, and multiple processes.
No images available for this section (Palatine_Bone).
The horizontal plate is a flat, rectangular-shaped component that forms the posterior one-third of the hard palate.
No images available for this section (Horizontal_plate_of_palatine_bone_duplicate).
The perpendicular plate of the palatine bone is the vertical part of the bone. It has two surfaces that take part in forming the nasal cavity and maxillary sinuses.
No images available for this section (Perpendicular_plate_of_palatine_bone).
The perpendicular plate’s nasal surface is the perpendicular plate’s medial surface that takes part in the formation of the nasal surface.
No images available for this section (Nasal_Surface_of_Perpendicular_Plate).
The pyramidal process is a posterolateral-oriented process that is located in the area where the lateral plate of the palatine bone meets the perpendicular plate of the palatine bone.
No images available for this section (Pyramidal_Process).
The lesser palatine canals are tunnels that pass through the pyramidal process of the palatine bone. They open on the inferior surface of the bone via lesser palatine foramina.
No images available for this section (Lesser_Palatine_Canals).
The conchal crest of the palatine bone is a ridge that articulates with the inferior nasal concha.
No images available for this section (Conchal_Crest_of_Palatine_Bone).
The maxillary process of the palatine bone is a process that articulates with the maxilla.
No images available for this section (Maxillary_Process_of_Palatine_Bone).
The ethmoidal crest is a ridge that articulates with the inferior concha.
No images available for this section (Ethmoidal_Crest_of_Palatine_Bone).
The sphenopalatine notch is a notch that is situated where the orbital process meets the sphenoidal process of the palatine bone.
No images available for this section (Sphenopalatine_Notch).
The greater palatine groove of the palatine bone is a groove that is situated on the posterior part of the maxillary surface of the palatine bone. The articulated skull forms the greater palatine canal after the articulation with the maxilla.
No images available for this section (Greater_Palatine_Groove_of_Palatine_Bone).
The maxillary surface of the palatine bone is the lateral surface of the perpendicular plate of the bone that takes part in the formation of the maxillary surface.
No images available for this section (Maxillary_Surface_of_Palatine_Bone).
The orbital process is a bony process located at the superior end of the vertical plate. It is oriented superolateral. It articulates with the maxilla, sphenoid, and ethmoid.
No images available for this section (Orbital_Process).
The sphenoidal process is a horizontal process with the aspect of a plate that is oriented superomedial. It articulates with the sphenoid (body and vaginal procedure).
No images available for this section (Sphenoidal_Process).
The horizontal plate is a flat, rectangular-shaped component that forms the posterior one-third of the hard palate.
No images available for this section (Horizontal_Plate_of_Palatine_Bone_duplicate).
The nasal surface of the horizontal plate of the palatine bone refers to the part of the palatine bone that takes part in the formation of the floor of the nasal cavity.
No images available for this section (Nasal_Surface_of_Horizontal_Plate).
The palatine surface of the horizontal plate of the palatine bone is part of the bone that forms the posterior one-third of the hard palate.
No images available for this section (Palatine_Surface_of_Palatine_Bone).
The posterior nasal spine is a bony projection positioned at the posterior of the palatine surface of the palatine bone.
No images available for this section (Posterior_Nasal_Spine).
The Vomer articulates with: the Sphenoid, The two Maxilla, The Palatine Bones, the Ethmoid.
No images available for this section (Vomer-_Disarticulated_view).
The vomer is an unpaired bone that takes part in the formation of the nasal septum.
No images available for this section (Vomer).
The alas of the vomer are two wing-like projections positioned on either side of the vomer’s superior border. They articulate with the sphenoid bone via the vaginal process of the medial pterygoid plate; and palatine bones via sphenoidal processes.
No images available for this section (Ala_of_Vomer).
The vomerine groove is an oblique groove that is positioned on the vomer’s surface.
No images available for this section (Vomerine_Groove).
The vomerine crest is the posterior border of the vomer.
No images available for this section (Vomerine_Crest_of_Choana).
The cuneiform part of the vomer is represented by the anterior part of the bone and has a wedge shape.
No images available for this section (Cuneiform_Part_of_Vomer).
The zygomatic bone articulates with: The Frontal bone, The Sphenoid bone, The Maxilla, The Frontal bone, The Temporal bone (6).
No images available for this section (Zygomatic_bone-_Disarticulated_view).
The zygomatic bone is a paired bone that forms the cheek’s prominence and the orbit’s lateral wall.
No images available for this section (Zygomatic_Bone).
The lateral surface of the zygomatic bone is convex and smooth. It forms the bone’s outer surface.
No images available for this section (Lateral_Surface_of_Zygomatic_Bone).
The frontal process of the zygomatic bone is a thin, elongated bony projection that extends superior, taking part in the formation of the lateral wall of the orbit.
No images available for this section (Frontal_Process_of_Zygomatic_Bone).
The orbital tubercle is a bony projection positioned on the frontal process of the zygomatic bone. It provides an attachment site for the orbicularis oculi muscle.
No images available for this section (Orbital_Tubercle).
The temporal process of zygomatic bone is a bony projection positioned on the lateral surface of the zygomatic bone. It articulates with the zygomatic process of the temporal bone.
No images available for this section (Temporal_Process_of_Zygomatic_Bone).
The zygomaticofacial foramen is a small opening on the lateral surface of the zygomatic bone.
No images available for this section (Zygomaticofacial_Foramen).
The temporal surface of the zygomatic bone is the inner surface of the bone. It faces the temporal bone and takes part in the formation of the temporal fossa.
No images available for this section (Temporal_Surface_of_Zygomatic_Bone).
The marginal tubercle is a raised area that is situated on the posterior margin of the frontal process.
No images available for this section (Marginal_Tubercle).
The zygomaticotemporal foramen is a small opening or foramen located in the center of the temporal surface.
No images available for this section (Zygomaticotemporal_Foramen).
The orbital surface of the zygomatic bone is a surface of the bone that takes part in the formation of the lateral wall of the orbit.
No images available for this section (Orbital_Surface_of_Zygomatic_Bone).
The zygomatico-orbital foramen is a small opening on the lateral wall of the orbit.
No images available for this section (Zygomatico-orbital_Foramen).
The Maxilla articulates with: The Frontal bone, The Ethmoid bone, The Nasal bone, The Zygomatic, The Lacrimal, The Inferior Nasal Concha, The Palatine, The Vomer, The Maxilla.
No images available for this section (Maxilla-_Disarticulated_View).
The maxilla is a prominent paired bone of the face. It consists of a body and four processes: The Zygomatic process, The Frontal process, The Alveolar process, and the Palatine process.
No images available for this section (Maxilla).
The body of the maxilla is the central part of the bone. It has four surfaces and encloses a large cavity, the maxillary sinus.
No images available for this section (Body_of_Maxilla).
The frontal process of the maxilla is an upward-projecting process that takes part in forming the lateral boundary of the nose.
No images available for this section (Frontal_Process_of_Maxilla_1).
The zygomatic process of maxilla is the laterally oriented process that articulates with the zygomatic bone.
No images available for this section (Zygomatic_Process_of_Maxilla).
The palatine process of the maxilla is the medially oriented process that takes part in the formation of the hard palate.
No images available for this section (Palatine_Process).
The alveolar process is oriented inferiorly, and it presents numerous cavities for the reception of the roots of the teeth.
No images available for this section (Alveolar_Process).
The orbital surface of the maxilla is the superior surface of the maxilla and takes part in forming the orbit floor.
No images available for this section (Orbital_Surface_of_Maxilla).
The infra-orbital canal is a tunnel that starts on the orbit floor and opens on the anterior surface, just above the canine fossa.
No images available for this section (Infra-Orbital_Canal).
The infra-orbital groove is located in the mid-posterior part of the orbital surface of the maxilla. It begins at the posterior border and continues with the infraorbital canal.
No images available for this section (Infra-Orbital_Groove).
The orbital margin of the maxillary part is the margin located anterior to the orbital surface. It takes part in the formation of the inferior margin of the orbit.
No images available for this section (Maxillary_Part_of_Orbital_Margin).
The anterior surface of the maxilla is oriented anterolaterally. Its inferior part presents multiple prominences corresponding to the teeth’s roots.
No images available for this section (Anterior_Surface_of_Maxilla).
The infra-orbital foramen is a foramen that is located on the anterior surface of the maxilla. It is the opening of the infraorbital canal.
No images available for this section (Infra-Orbital_Foramen).
The canine fossa is a depression that is located on the anterior surface of the maxilla.
No images available for this section (Canine_Fossa).
The nasal notch is the deep concavity that takes part in forming the piriform aperture.
No images available for this section (Nasal_Notch).
The anterior nasal spine is a sharp bony projection located at the inferior end of the nasal notch. It results from the articulation of the maxilla with the opposing maxilla.
No images available for this section (Anterior_Nasal_Spine).
The infratemporal surface of the maxilla is oriented posterolaterally and forms the infratemporal surface.
No images available for this section (Infratemporal_Surface_of_Maxilla).
The alveolar foramina are openings located in the centre of the infratemporal surface of the maxilla. They give passage to alveolar vessels and nerves.
No images available for this section (Alveolar_Foramina).
The alveolar canals are located on the maxilla’s infratemporal surface. They give passage to alveolar vessels and nerves.
No images available for this section (Alveolar_Canals).
The maxillary tuberosity is a round prominence located on the inferior part of the infratemporal surface of the maxilla.
No images available for this section (Maxillary_Tuberosity).
The maxilla’s nasal surface is the bone’s medial surface. It takes part in forming the lateral wall of the nasal cavity.
No images available for this section (Nasal_Surface_of_Maxilla).
The lacrimal groove of the maxilla is a deep groove located anterior to the hiatus of the maxilla and posterior to the anterior lacrimal crest. It takes part in the formation of the nasolacrimal canal.
No images available for this section (Lacrimal_Groove_of_Maxilla).
The maxilla’s conchal crest is a ridge in the anterior region of the nasal surface. In the articulated skull, it articulates with the inferior nasal concha.
No images available for this section (Conchal_Crest_of_Maxilla).
The lacrimal margin of the maxilla is the border that articulates with the lacrimal bone in the articulated skull.
No images available for this section (Lacrimal_Margin_of_Maxilla).
The hiatus of the maxilla is the opening of the sinus of the maxilla. It is large and irregular.
No images available for this section (Hiatus_of_Maxilla).
The greater palatine groove of the maxilla is an obliquely orientated groove located near the posterior border. In the articulated skull, it takes part in the formation of the pterygopalatine canal.
No images available for this section (Greater_Palatine_Groove_of_Maxilla).
The sinus of the maxilla is a large cavity that is enclosed in the body of the maxilla.
No images available for this section (Sinus_of_Maxilla).
The frontal process of the maxilla is an upward-projecting process that takes part in forming the lateral boundary of the nose.
No images available for this section (Frontal_Process_of_Maxilla_2).
The anterior lacrimal crest is a vertically oriented ridge on the frontal process of the maxilla that continues the orbital margin.
No images available for this section (Anterior_Lacrimal_Crest).
The lacrimal notch is situated posterior to the frontal process. It articulates with the lacrimal hamulus.
No images available for this section (Lacrimal_Notch).
The ethmoidal crest is an obliquely oriented ridge situated on the maxilla’s frontal process above the conchal crest. It articulates with the ethmoid.
No images available for this section (Ethmoidal_Crest_of_Maxilla).
The nasal crest of the maxilla is a bony crest resulting from the maxilla’s articulation with the opposite maxilla. It is situated on the midline of the upper surface of the palatine process.
No images available for this section (Nasal_Crest_of_Maxilla).
The incisive canals are at the anterior end of the medial border. In the articulated skull, they open at their superior end as two canals and at the inferior end as the incisive foramina.
No images available for this section (Incisive_Canals).
The palatine spines are prominences located between the grooves.
No images available for this section (Palatine_Spines).
The palatine grooves are grooves that are located on the inferior surface of the palatine process of the maxilla.
No images available for this section (Palatine_Grooves).
The alveolar arch of the maxilla is the inferior free margin of the alveolar process.
No images available for this section (Alveolar_Arch_of_Maxilla).
The dental alveoli are eight cavities that bear the teeth. Their dimensions and structure vary.
No images available for this section (Dental_Alveoli_of_Maxilla).
The interalveolar septa are bony prominences interposed between the alveoli.
No images available for this section (Interalveolar_Septa_of_Maxilla).
The interradicular septa of the maxilla refer to bony ridges that form compartments within the sockets of multirooted teeth.
No images available for this section (Interradicular_Septa_of_Maxilla).
The alveolar yokes of the maxilla are bony prominences that are found on the lateral surface of the alveolar process. They represent the eminences produced by the roots of the teeth.
No images available for this section (Alveolar_Yokes_of_Maxilla).
The incisive foramina are present in the articulated skull on the midline just posterior to the incisors.
No images available for this section (Incisive_Foramina).