part of part of innervates innervates Homo sapiens axillary nerve http://upload.wikimedia.org/wikipedia/commons/e/ea/Brachial_plexus_2.svg https://upload.wikimedia.org/wikipedia/commons/d/d4/Brachial_plexus.jpg NCIT:C52817 Wikipedia:Axillary_nerve auxillery nerve The axillary nerve is a nerve of the human body, that comes off the posterior cord of the brachial plexus at the level of the axilla (armpit) and carries nerve fibers from C5 and C6. The axillary nerve travels through the quadrangular space with the posterior circumflex humeral artery and vein. [WP,unvetted]. circumflex nerve FMA:37072 EMAPA:18802 UMLS:C0228885 circumflex humeral nerve nervus axillaris MA:0001166 UBERON:0001493 SCTID:181009006 brachial nerve plexus arm nerve axilla