Definition: nerve that arises from the posterior cord of the brachial plexus in the axilla, passes laterally and posteriorly through the quadrangular space with the posterior circumflex humeral artery; muscular branches pass to the teres minor and wind around the surgical neck of the humerus to the deltoid; terminates as the superior lateral brachial cutaneous nerve.
Synonym(s): nervus axillarisTA, circumflex nerve
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