The hip bone is composed of ilium, ischium, and pubis. What is this bone called?

The hip bone is composed of ilium, ischium, and pubis. What is this bone called?

• A. Coxal bone
• B. Femur
• C. Tibia
• D. Fibula

Answer: (A)

The hip bone on one side is formed from three bones—ilium, ischium, and pubis—that fuse together. When that fusion creates a single bone, its proper name is the coxal bone (also called the hip bone or os coxae). This bone is a major part of the pelvis and helps form the socket for the thigh bone at the acetabulum. The other options are leg bones, not the hip bone: the femur is the thigh bone, while the tibia and fibula are the bones of the lower leg.

The hip bone on one side is formed from three bones—ilium, ischium, and pubis—that fuse together. When that fusion creates a single bone, its proper name is the coxal bone (also called the hip bone or os coxae). This bone is a major part of the pelvis and helps form the socket for the thigh bone at the acetabulum. The other options are leg bones, not the hip bone: the femur is the thigh bone, while the tibia and fibula are the bones of the lower leg.