Lab 14 - Image 1
Medial view of the brachium and antebrachium. The musculocutaneous n. (1) sends branches to the biceps brachii m. (2) and the brachialis m. (3) and ends as the medial cutaneous antebrachial n. (4). The median n. (5) receives a communicating branch (6) from the musculocutaneous n and then innervates caudal muscles of the antebrachium (7) before continuing (elevated by a probe) to innevate the palmar surface of the manus. The ulnar n. (8) gives off the caudal cutaneous antebrachial n. (9) and also innervates caudal muscles of the antebrachium before continuing distally to the lateral surface of the manus.. Observe the radial n. (10) passing laterally.