lateral cord lateral cord the lateral cord is the part of the brachial plexus formed by the anterior divisions of the upper (c5-c6) and middle trunks (c7). its name comes from it being lateral to the axillary artery as it passes through the axilla. the other cords of the brachial plexus are the posterior cord and medial cord. lateral corddiagram of the brachial plexus. lateral cord is labeled left of centre.the right brachial plexus with its short branches, viewed from in front. the sternomastoid and trapezius muscles have been completely, the omohyoid and subclavius have been partially, removed; a piece has been sawed out of the clavicle; the pectoralis muscles have been incised and reflected.detailsfromanterior divisions of the upper and middle trunks of the brachial plexustolateral pectoral nervemusculocutaneous nervelateral head of median nerveidentifierslatinfasciculus lateralis plexus brachialista98a14.2.03.021ta26415fma45235anatomical terms of neuroanatomy the lateral cord gives rise to the following nerves from proximal to distal: lateral pectoral nerve (c5-c7) musculocutaneous nerve (c5-c7) lateral head of median nerve (c5-c7) additional images lateral cord brachial plexus.deep dissection. nerve supply of the human armsupraclavicular root (dorsal scapular, long thoracic) upper trunk (suprascapular, to the subclavius) infraclavicularlateral cord lateral pectoral ansa pectoralis musculocutaneous (lateral cutaneous of forearm) median/lateral root: anterior interosseous palmar recurrent common palmar digital (proper palmar digital) medial cord medial pectoral ansa pectoralis cutaneous: medial cutaneous of forearm medial cutaneous of arm ulnar: muscular palmar dorsal (dorsal digital nerves) superficial (common palmar digital, proper palmar digital) deep median/medial root: see above posterior cord subscapular (upper, lower) thoracodorsal axillary (superior lateral cutaneous of arm) radial: muscular cutaneous (posterior of arm, inferior lateral of arm, posterior of forearm) superficial (dorsal digital nerves) deep (posterior interosseous) other brachial plexus authority control terminologia anatomica this article is issued from wikipedia. the text is licensed under creative commons - attribution - sharealike. additional terms may apply for the media files.