Which Bones Make Coxal?

At birth, each coxal bone starts out as three separate bones – the ilium, (ILL-ee-um), the ischium, (ISH-ee-um) and the pubis (PYOO-bus) bones – joined by hyaline cartilage

. Figure 7.13 shows what these bones look like initially. By the age of 25, these three bones have fully fused into a single coxal bone.

What bones make up the coxal?

Commonly referred to as your hipbones, the two major bones in your pelvis are your coxal bones. Each coxal bone is made up of three smaller bones that fuse together: your ilium, ischium and pubic bone. When you put your hands on your hips, they are resting on your illia. These are most pronounced in women.

How many coxal bones are there?

- The pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones - ilium, ischium, and pubis. At the point of fusion of these bones, there is a cavity called the acetabulum to which the thigh bone articulates.