Fig. 1. Anteromedial view of the arm showing the PBEb running from the inferior border of the pectoralis major muscle to the medial epicondyle of the humerus and the medial intermuscular septum. White dashed line, total length 23.5 cm; black dashed line, attachment in the fascia of epitrochlear muscles; (A) 5 cm form origin. Point of smaller width of the band; (B) 14 cm from origin. Division of the band in anterolateral and posteromedial layers; white arrow, proximal opening of the canal; Black arrow, distal opening of the canal; PBEb, pectorobrachioepicondylaris band; PMt, pectoralis major tendon; BBm, biceps brachii muscle; Bm, brachialis muscle; MACn, medial antebrachial cutaneous nerve.
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