The hip bone is also called innominate or nameless bone. ... The Ilium, ischium and pubis are connected through cartilage and slowly become one bone. The ischium and pubis fuse first followed by the ilium and the three bones fully ossify somewhere between eighteen and twenty-three years of age.

What type of bone is the innominate?

The hip bone (os coxae, innominate bone, pelvic bone or coxal bone) is a large flat bone, constricted in the center and expanded above and below. In some vertebrates (including humans before puberty) it is composed of three parts: the ilium, ischium, and the pubis.

What is the hip bone also called?

The adult os coxae, or hip bone, is formed by the fusion of the ilium, the ischium, and the pubis, which occurs by the end of the teenage years. The 2 hip bones form the bony pelvis, along with the sacrum and the coccyx, and are united anteriorly by the pubic symphysis.