Why One Bony Spur Anchors Three Shoulder Muscles

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The coracoid process is a single anterior projection on the scapula that serves as the shared attachment point for the short head of biceps brachii, pectoralis minor, and coracobrachialis. This anatomical convergence means that tension, injury, or dysfunction in any one of these muscles can be clinically assessed or treated at a single palpable landmark. Recognizing these shared origins helps clinicians localize the source of shoulder and arm complaints more efficiently.

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