Updated: 10/19/2017

Pectoralis Minor

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Origin 3rd to 5th ribs near their costal cartilages
Insertion Medial border and superior surface of coracoid process of scapula
Action Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall
Innervation Medial pectoral nerves; (C8 and T1) 
Arterial Supply Pectoral branch of the thoracoacromial trunk

 
 

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