The hip joint is a ball and socket synovial joint that connects the femur to the pelvis. It allows for walking, running, and jumping by facilitating flexion, extension, abduction, adduction, and rotation. The hip joint bears the body's weight and is stabilized by strong ligaments like the iliofemoral, pubofemoral, and ischiofemoral ligaments. It receives blood supply from the medial and lateral circumflex femoral arteries and is innervated by the sciatic, femoral, and obturator nerves.