posterior circumflex humeral artery

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pos·te·ri·or cir·cum·flex hu·mer·al ar·ter·y

[TA]
origin, axillary; course, passes around posterior aspect of surgical neck of humerus, traversing quadrangular space with axillary nerve; distribution, muscles and structures of shoulder joint; anastomoses, anterior circumflex humeral, suprascapular, thoracoacromial, and profunda brachii.

posterior circumflex humeral artery

an artery that originates from the third part of the axillary artery, leaves the axilla through the quadrangular space in the posterior wall, and enters the posterior scapular region where it supplies related muscles and the glenohumeral joint.

pos·te·ri·or cir·cum·flex hu·mer·al ar·te·ry

(pos-tēr'ē-ŏr sĭr'kŭm-fleks hyū'mĕr-ăl ahr'tĕr-ē) [TA]
Origin, axillary; distribution, muscles and structures of shoulder joint; anastomoses, anterior circumflex humeral, suprascapular, thoracoacromial, and profunda brachii.
Synonym(s): arteria circumflexa humeri posterior, posterior humeral circumflex artery.
References in periodicals archive ?
If an entry point inferior to the teres minor muscle (through the quadrangular space) is used, other potential risks are contact with the axillary nerve and the posterior humeral circumflex artery.

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