Pectoralis Minor

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Pectoralis Minor origin

3rd, 4th, and 5th ribs near the costal cartilage

Pectoralis Minor insertion

Coracoid process

Pectoralis Minor actions

Depression (scapula), Downwardly rotates scapula, Abduction (scapula), Accessory respiratory muscle if scapula is fixed --elevates ribs with forced inspiration

Pectoralis Minor innervation

Medial Pectoral N. (C8, T1)

Pectoralis Minor blood supply

Pectoral Branch of the Thoracoacromial Trunk


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