Medial view of the scapular region and brachium. The axillary a. (held in forceps) gives off a large subscapular a. (1) and then becomes the brachial a. (2), after sending a cranial circumflex humeral a. (not visible) to the biceps brachii m. The subscapular a. gives rise to the thoracodorsal a. (3) which supplies the latissimus dorsi m. (4), as does the thoracodorsal n. (5) from the brachial plexus.

Also, find: biceps brachii m. (6) innervated by the musculocutaneous n. (7), median n. (8), ulnar n. (9), suprascapular n. (10), and nerve to the cleidobrachialis m. (11).

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