The fibers of the pectoralis major run toward the ventral midline as well as posteriorly. When they contract the humerus is adducted as well as retracted.
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The pectoantibrachialis and the clavobrachialis have been reflected by the pin, making the insertion of the pectoralis
major along the pectoral ridge of the humerus visible. The fibers of the pectoralis major run toward the ventral midline as well as posteriorly. When they contract the humerus is adducted as well as retracted. Back |
Pectoralis Muscles |