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pectoralis minor
Deep muscle of the chest wall.
Origin: 3rd to 5th ribs at the costochondral articulations
Insertion: tip of coracoid process of the scapula
Action: draws down scapula or raises ribs
Innervation: medial pectoral nerve
General
skeletal muscle (voluntary muscle)
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999
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