TOPICS: Axillary nerve, musculocutaneous nerve, suprascapular nerve, upper trunk (C5-C6 roots), deltoid, shoulder abduction, biceps brachii, elbow flexion, forearm supination, supraspinatus, infraspinatus, external rotation, suprascapular muscle, infrascapular muscle, adduction, brachial plexus nerves, roots, trunks, divisions, cords, branches, brachial plexus injuries, median nerve, ulnar nerve, radial nerve, long thoracic nerve, lateral cord, posterior cord, medial cord, course of the brachial plexus nerves, cutaneous innervation of the brachial plexus, lateral antebrachial cutaneous, medial antebrachial cutaneous, medial brachial cutaneous, dorsal antebrachial cutaneous, upper trunk damage