<Li> <P> Left hip - joint, opened by removing the floor of the acetabulum from within the pelvis . </P> </Li> <P> Left hip - joint, opened by removing the floor of the acetabulum from within the pelvis . </P> <Li> <P> Hip bone. Medial view . </P> </Li> <P> Hip bone. Medial view . </P>

What structure of the os coxa forms a joint with the femur