The bony pelvis consists of:
- Two hip bones
- Sacrum
- Coccyx
Functions
- Stabilization and the support of the center of gravity
- Protection and housing of soft organs
- Attachment point of muscles and ligaments
- In females, the pelvic outlet allows child delivery
Hip bone
The paired hip-bone can be divided into three parts:
- Ischium
- Ilium
- Pubis
These three parts are separated bones at birth, and fuse by adulthood to form a single hip bone, by the fusion of triradiate cartilage at a common point – the acetabulum.