This is a spheroidal joint formed by the femoral head and the '''acetabulum'''. The '''acetabulum''' is formed by all three pelvic bones and an additional '''small acetabular bone''' in carnivores. The craniolateral part is made by the ilium, the caudolateral part by the ischium and the medial part by the pubis. The cavity of the acetabulum consists of a peripheral '''articular lunate surface''' and the non-articular '''acetabular fossa''' in its centre. The lunate surface is crescent shaped and has on its medial aspect the '''acetabular notch'''. Cattle also have a '''cranioventral notch ''' present. The '''acetabular lip''' is a band of fibrocartilage that lies on the acetabular rim, thus deepening the acetabulum. The joint capsule is large and attaches to the acetabular lip. | This is a spheroidal joint formed by the femoral head and the '''acetabulum'''. The '''acetabulum''' is formed by all three pelvic bones and an additional '''small acetabular bone''' in carnivores. The craniolateral part is made by the ilium, the caudolateral part by the ischium and the medial part by the pubis. The cavity of the acetabulum consists of a peripheral '''articular lunate surface''' and the non-articular '''acetabular fossa''' in its centre. The lunate surface is crescent shaped and has on its medial aspect the '''acetabular notch'''. Cattle also have a '''cranioventral notch ''' present. The '''acetabular lip''' is a band of fibrocartilage that lies on the acetabular rim, thus deepening the acetabulum. The joint capsule is large and attaches to the acetabular lip. |