This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': 'Skin over thenar eminence is supplied by: \nSelect and explain. \nA. Radial Nerve, B. Median Nerve, C. Ulnar Nerve, D. Anterior Interosseus Nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Median NerveMedian nerve innervate skin on the palmar surfaces of the lateral three and one-half digits and adjacent palm as well as cutaneous regions over the dorsal aspects of the distal phalanges (nail beds) of the same digits.Ulnar nerve supply skin on the palmar & dorsal surface of the little finger and the medial half of the ring finger & adjacent palm.Superficial branch of radial nerve provides cutaneous innervations to 1) lateral 2/3rd of dorsum of hand 2) dorsum of index finger, middle finger and lateral half of ring finger over proximal and middle phalanx.', 'role': 'assistant'}]