Functional Hip Joint This functional hip joint model provides a graphic demonstration of the anatomy and mechanics of the human hip joint, allowing better doctor-patient or teacher-student understanding of the anatomy of the hip joint. Use this life-size and fully flexible hip joint to demonstrate abduction, anteversion, retroversion, internal/external rotation and much more. The functional joint consists of portion of femur, hip bone and joint ligaments. Functional hip joint on stand for easy display in the classroom or doctors office. Detailed study of the anatomy of the human hip bone is easy with this realistic high quality model.