For Providers -- Atlas of Human Anatomy

The os coccygis seen from behind.

Translated by: Ronald A. Bergman, PhD and Adel K. Afifi, MD, MS
Peer Review Status: Internally Peer Reviewed

a) – d) First to fourth (false) vertebrae.
e) Articular cavity ( for the point of the sacral bone).
f) Coccygeal cornu.
g) Transverse process.