Which nerve innervates the superior gemellus?

Which nerve innervates the superior gemellus?

• A. Nerve to Obturator Internus
• B. Superior Gluteal Nerve
• C. Femoral Nerve
• D. Sciatic Nerve

Answer: (A)

The nerve to obturator internus supplies the superior gemellus. This muscle, originating from the ischial spine and blending with the tendon of the obturator internus to insert on the greater trochanter, shares its nerve with obturator internus, enabling both muscles to act as lateral rotators of the hip. The other nerves listed serve different muscle groups: the superior gluteal nerve to gluteus medius/minimus (and tensor fasciae latae), the femoral nerve to anterior thigh muscles, and the sciatic nerve to the posterior thigh and much of the leg. So, the nerve to obturator internus is the correct innervation for the superior gemellus.

The nerve to obturator internus supplies the superior gemellus. This muscle, originating from the ischial spine and blending with the tendon of the obturator internus to insert on the greater trochanter, shares its nerve with obturator internus, enabling both muscles to act as lateral rotators of the hip. The other nerves listed serve different muscle groups: the superior gluteal nerve to gluteus medius/minimus (and tensor fasciae latae), the femoral nerve to anterior thigh muscles, and the sciatic nerve to the posterior thigh and much of the leg. So, the nerve to obturator internus is the correct innervation for the superior gemellus.