This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Anatomy
[{'content': 'Nerve supply of adductors of thigh includes \nSelect and explain. \nA. Femoral nerve, B. Obturator nerve, C. Inferior gluteal nerve, D. Superior gluteal nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Obturator nerve# Obturator Nerve:> Obturator nerve (L2 L3 L4) is the chief nerve of the medial (adductor) compartment of the thigh.> It is a branch of the lumbar plexus.> It enters the thigh by passing through the obturator canal.> Anterior division of obturator nerve supplies the following muscles: Pectineus, Adductor longus, Gracilis, Adductor brevis.> Posterior division of obturator nerve supplies following muscles: Obturator extemus, Adductor magnus, Adductor brevis.> Adductor magnus has double nerve supply. Its adductor part is supplied by the obturator nerve, while its hamstring part is supplied by the tibial part of the sciatic nerve.> Pectineus also has a double innervation; its anterior fibres are supplied by the femoral nerve and the posterior fibres by the obturator nerve> Obturator nerve also give branches to the hip and the knee joint so a lesion of the nerve may cause pain in the hip & knee joint.', 'role': 'assistant'}]