What is the acetabulofemoral joint? While you may not have heard its long name, the aceteabulofemoral joint, or hip joint, is an incredibly important moving part of the body. Our hips and the muscles that attach to them support most of our weight, and allow for many movements, including running and walking. The hips also are the most important elements of human posture. Studying the composition and actions of the hip is extremely important for anyone in medical school, especially those in physical therapy. Our collection of muscled hip models will help everyone learn about this fascinating joint.