COCCYX ANATOMY
Coccyx - X-ray Mode Overview, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.
TABLE OF CONTENTS
OVERVIEW
- The coccyx, or tailbone, is the lowermost part of the spine
- Connects to the apex of the sacrum, forming the coccygeal segment of the vertebral column
- Features three main anatomical components:
- Base
- Coccygeal horns (cornua)
- Apex
BASE OF THE COCCYX
Coccyx - General Structure, Preview from the app. Download 3D OSTEOLOGY for full 3D control—multiple views, x-ray mode, and unlimited zoom.
- Broad, uppermost portion of the coccyx
- Articulates with the apex of the sacrum through an oval-shaped facet
COCCYGEAL HORNS (CORNUA)
- Upward-projecting structures on the posterior aspect of the coccyx
- Align with the sacral horns to form a connection between the sacrum and coccyx
APEX OF THE COCCYX
- Tapered lower tip of the coccyx, pointing downward
- Functions as an anchor point for ligaments supporting pelvic structures
BIBLIOGRAPHY
1. Henry G, Warren HL. Osteology. In: Anatomy of the Human Body. 20th ed. Philadelphia: Lea & Febiger; 1918. p. 129–97.