Which bone forms the hip socket?

Which bone forms the hip socket?

• A. Ilium
• B. Acetabulum
• C. Sacrum
• D. Tibia

Answer: (B)

The hip socket is the acetabulum, a cup-shaped cavity on the lateral pelvis that receives the head of the femur to form the hip joint. The acetabulum is created by the fusion of three bones of the pelvis—the ilium, ischium, and pubis—which together shape this socket. The ilium helps form the upper rim, the ischium contributes the lower posterior portion, and the pubis provides the anterior part. The sacrum does not form the socket, and the tibia is a leg bone, not involved in creating the hip socket.

The hip socket is the acetabulum, a cup-shaped cavity on the lateral pelvis that receives the head of the femur to form the hip joint. The acetabulum is created by the fusion of three bones of the pelvis—the ilium, ischium, and pubis—which together shape this socket. The ilium helps form the upper rim, the ischium contributes the lower posterior portion, and the pubis provides the anterior part. The sacrum does not form the socket, and the tibia is a leg bone, not involved in creating the hip socket.