Answer
Another name for the hip joint is the coxal joint. Involved in this complex joint are the following femoral head, fovea capitis ligament, acetabulum, and labrum.
There are five major ligaments:
1. transverse
2. fibular collateral (lateral)
3. tibial collateral (medial)
4. anterior cruciate
5. posterior cruciate
In the hip joint the acetabulum (head of the femur) inserts into the deep socket of the coxal bone --the acetabulum. This joint (joints) beras most of the body's weight when a subject is in the upright position (standing).
The labrum is a horse-shoe shaped ring of fibrocartilage that surrounds coxal joints; the labrum seals the femur head in the acetabulum and makes the hip joint more stable than the shoulder joint. It also give the hip socket the appearance of being deeper in life than it really is.
Labral tears are important hazards for athletes and gymnasts
Work Step by Step
The bones of the coxal joint are the ilium, ischium and pubis. These all contribute to the formation of the acetabulum. The ligaments associated with these bones are the iliofemoral pubofemoral (anteriorly) and the ischiofemoral on the posterior side.
When one stands these ligaments pull the head of the femur tightly into the acetabulum.
The round ligament (ligamentum teres) is a flat triangular ligament that connects the acetabular ligament to the fovea centralis of the femoral head-- the fovea centralis is a pit in the head of the femur,
The transverse acetabular ligament covers the gap on the inferior margin of the acetabulum.
