Which nerve supplies the hamstring part of the adductor magnus?

Which nerve supplies the hamstring part of the adductor magnus?

• A. Common fibular nerve
• B. Femoral nerve
• C. Tibial nerve
• D. Obturator nerve

Answer: (C)

The hamstring part of the adductor magnus is innervated by the tibial division of the sciatic nerve. This posterior portion of the muscle mirrors the true hamstrings and receives motor supply from the tibial nerve, explaining its role in hip extension. The anterior/adductor part, which lies closer to the medial thigh, is innervated by the obturator nerve, while the femoral nerve supplies the anterior thigh muscles and the common fibular (peroneal) nerve supplies the short head of the biceps femoris and other non-hamstring muscles. Thus, the tibial nerve is the correct innervation for the hamstring portion.

The hamstring part of the adductor magnus is innervated by the tibial division of the sciatic nerve. This posterior portion of the muscle mirrors the true hamstrings and receives motor supply from the tibial nerve, explaining its role in hip extension. The anterior/adductor part, which lies closer to the medial thigh, is innervated by the obturator nerve, while the femoral nerve supplies the anterior thigh muscles and the common fibular (peroneal) nerve supplies the short head of the biceps femoris and other non-hamstring muscles. Thus, the tibial nerve is the correct innervation for the hamstring portion.