Which groove is located above the acetabulum?

• A. Subclavian Groove
• B. Interosseous Membrane
• C. Supraacetabular Groove
• D. Malleolar

Answer: (C)

This question tests knowledge of pelvic landmarks, specifically the groove that lies superior to the acetabulum. The acetabulum is the hip socket on the lateral side of the pelvis, and just above it on the ilium there is a groove called the supraacetabular groove. The name itself indicates its location: supra- means above, acetabular referring to the acetabulum. This makes it the correct choice for a structure positioned above the acetabulum.

The other terms refer to areas far from the hip region: the subclavian groove is on the clavicle where vessels pass, the interosseous membrane stretches between paired bones (like the radius and ulna or the tibia and fibula), and the malleolar groove is associated with the ankle region.