Medical Dictionary

pectoral nerve

noun

Medical Definition of pectoral nerve

  1. :  either of two nerves that arise from the brachial plexus on each side or from the nerve trunks forming it and that supply the pectoral muscles:a:  one lateral to the axillary artery—called also lateral pectoral nerve, superior pectoral nerveb:  one medial to the axillary artery—called also inferior pectoral nerve, medial pectoral nerve


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