Median Nerve

The median nerve receives fibers from C6 through T1. It crosses from lateral to the brachial artery to the medial side in the middle of the arm. It then descends into the cubital fossa and enters the forearm with the brachial artery. It supplies the remainder of the flexor muscles not supplied by the ulnar nerve, including flexor pollicis longus and the other half of the flexor digitorum profundus. Cutaneous innervation provides sensation to the first, second, and third digits and that part of the hand on the palmar side (Fig. 3). On the dorsal side, it only provides sensation to the distal first through third digits.

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