Bilateral Chondroepitrochlearis Muscle: Case Report, Phylogenetic Analysis, and Clinical Significance

Figure 3

Photograph demonstrating the neurovascular supply of the left CEM. One branch of medial pectoral nerve (N1) passes though pectoralis minor (PMin) and the other branch (N2) passes deep to PMin. Pectoral branch of thoracoacromial trunk (black arrow) provides its arterial supply and lateral thoracic vein (white arrow) drains its venous blood (PM: pectoralis major; fs: fascial sling).