What bones make up the pelvic structure?

The pelvic structure is primarily composed of the sacrum, coccyx, and innominate bones. The innominate bones, also referred to as the hip bones, consist of three parts: the ilium, ischium, and pubis, which come together to form the sides of the pelvis. The sacrum is a triangular bone located at the base of the spine, and the coccyx, or tailbone, is situated at the very bottom of the vertebral column. Together, these bones create the bony pelvic ring, which supports the weight of the upper body when sitting or standing, protects the pelvic and abdominal organs, and provides a framework for the attachment of muscles and ligaments. This combination of bones is crucial for stability, locomotion, and the process of childbirth.