Question

Two hip bones help form the pelvis. Each hip bone consists of three separate bones (ilium, ischium, pubis) in the newborn, but eventually the three bones fuse to form one bone. By covering the right or left half of Figure 6-9, you are observing a hip bone. Locate the ilium, the ischium, and the _____, which fuse to make up the hip

Answer 1

The hip bone, comprising the ilium, ischium, and pubis, forms the bulk of the pelvic girdle. These bones fuse during the late teenage years to create a single bone, providing stability to the pelvis.

Step-by-step explanation:

The hip bone, also known as the coxal bone, plays a vital role in forming the pelvic girdle of the pelvis. In a newborn, each hip bone consists of three separate bones: the ilium, the ischium, and the pubis.

These bones are responsible for shaping different regions of the hip. The ilium forms the large, fan-shaped superior portion of the hip bone. The ischium is the posteroinferior part that supports the body when seated.

Finally, the pubis forms the anteromedial portion of the hip bone and is involved in forming the pubic symphysis, where it joins with the pubis from the opposite hip bone.

Over time, typically by the late teenage years, the three bones fuse together to form a single bone. This process contributes to the structural integrity and stability of the pelvic girdle.