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Anatomy

The anatomy of the pectoralis major muscle demonstrates two distinctively different parts—the clavicular head and the sternal head . We feel that when evaluating injuries to the pectoralis it is important to understand the anatomy of the pectoralis major muscle complex.

Unfortunately, many of the published reports never comment on this difference, or describe it […]

Pectoralis Major Tendon Ruptures

Key Points

The pectoralis major muscle demonstrates two distinctively different parts—the clavicular head and the sternal head. The clavicular head arises from the medial clavicle and upper sternum. It is supplied by the pectoral nerve off of the lateral cord and the deltoid branch of the thoraco-acromial artery. The sternal head arises from the sternum, […]