Gross Anatomy Dry Laboratory Lower Body Practice Test 2026 – Your All-in-One Resource for Comprehensive Exam Success!

Understanding how the hip’s deep external rotators work helps explain this one. Quadratus femoris acts to rotate the thigh laterally at the hip joint; its fibers pull on the posterior aspect of the femur to turn the leg outward and help stabilize the hip by keeping the femoral head in the acetabulum. It does not primarily flex the hip, abduct it, or internally rotate the thigh, which is why lateral rotation is the correct action.