Enarthrodial Joint -

Formed by the fitting of a rounded, ball-like surface of one bone into a cup-like depression (socket) of another.

Stability is typically provided by a dense fibrous joint capsule and strong ligaments. For instance, the hip is supported by the iliofemoral ligament , often cited as the strongest in the human body. Primary Examples enarthrodial joint

Formed between the head of the femur and the acetabulum of the pelvis. Formed by the fitting of a rounded, ball-like