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6. The pectoralis major is innervated by the __ and supplied with blood by the __.

a. Brachial plexus, thoracoacromial artery
b. Cavernous plexus, subclavian artery
c. Abdominal aortic plexus, cephalic vein
d. Lumbosacral plexus, axillary vein

Sagot :

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Final answer:

The pectoralis major muscle is innervated by the brachial plexus and receives its blood supply from the thoracoacromial artery.


Explanation:

The pectoralis major muscle is innervated by the brachial plexus, specifically the lateral pectoral nerve. The blood supply to the pectoralis major muscle comes from the pectoral branch of the thoracoacromial artery.


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