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Posterior humeral circumflex artery

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Anatomy

Course and relations

It passes posteriorward with the axillary nerve through the quadrangular space. It winds laterally around the surgical neck of the humerus.

Distribution

It is distributed to the shoulder joint, teres major, teres minor, deltoid, and (long and lateral heads of) triceps brachii.

Anastomoses

It forms anastomoses with the anterior humeral circumflex artery, (deltoid branch of) profunda brachii artery, (acromial branches of) suprascapular artery, (acromial branches of) and thoracoacromial artery.

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