Where are the hip bones?

The hip bones, also known as the pelvic bones, form a large basin-like structure at the lower end of the trunk. Each hip bone is made up of three bones that fuse together during development:

- Ilium: The ilium is the largest and uppermost part of the hip bone. It forms the upper part of the acetabulum, the cup-shaped socket that receives the head of the femur (thigh bone). The ilium also contributes to the formation of the pelvis and the lower back.

- Ischium: The ischium is the lower and back part of the hip bone. It forms the lower and back part of the acetabulum and contributes to the formation of the pelvic floor. The ischium also provides attachment for some of the muscles of the thigh and buttock.

- Pubis: The pubis is the lower and front part of the hip bone. It forms the front part of the acetabulum and contributes to the formation of the pubic symphysis, a joint that connects the two hip bones in the front. The pubis also provides attachment for some of the muscles of the abdomen and thigh.

The hip bones are located on either side of the lower spine and are connected to the spine by ligaments and muscles. They form the bony framework of the pelvis, which provides support for the internal organs and protects them from injury.