| The acetabulum is a hemispherical socket formed in the os coxae of a newborn where the ilium, ischium, and pubis bones come together. |
| The two coxal bones grow from three separate bones, the ilium, ischium, and pubis. |
| Posteriorly it stretched out into a long, thin postpubic process lying beneath and closely parallel to the ischium. |
| After further dissection, the surgeon exposes the pubic bone and identifies the ischium by palpation. |
| The rest of the pelvis is sometimes called the innominate bone and consists of the ilium, ischium, and pubis. |
| The pelvic component of the hip joint is called the acetabulum, which has contributions from the ischium, ilium and pubis. |
