acetabulum

The acetabulum is a cup-shaped socket located in the pelvis bones. It forms part of the hip joint, where it securely holds the head of the thigh bone (femur). This joint allows for a wide range of motion, like walking, running, and jumping. The acetabulum is covered with cartilage, which cushions the bones and reduces friction during movement. It also provides stability to the hip joint by fitting tightly around the femoral head. Overall, the acetabulum plays a crucial role in supporting the weight of the body and enabling smooth, coordinated hip movements.