The term that refers to the body ring formed by the hip bones is called the pelvis. The pelvis is composed of two pelvic bones (the left and right hip bone), the sacrum, and the coccyx. The hip bones join together anteriorly at the pubic symphysis, which is a cartilaginous joint that allows for slight movement of the bones. The hip bones are connected posteriorly to the sacrum. The sacrum is made up of five fused segments, and posterior to the sacrum is the coccyx which is comprised of four fused segments.
The hip bones provide major support for the body, as they house several major joints, muscles, and ligaments that are responsible for movement of the body and the lower limbs. They also provide protection to the internal organs in the pelvic area. Muscles that are attached to the hip bones are responsible for providing power and stability for movement.
The pubic symphysis is located between the two hip bones and is responsible for slightly separating the bones. It is made up of a thin layer of cartilage, and the amount of movement that the joint can provide is limited. It can become inflamed due to conditions such as symphysis pubis dysfunction, which can cause pain in the area.
The hip bones, and the ring formed by them, play a major role in providing strength and support to the body. The muscles and ligaments that are attached to the hip bones contribute to body movement and stability. Conditions such as symphysis pubis dysfunction can cause pain and discomfort in the area, and it is important to seek treatment if symptoms persist.