inferior lateral cutaneous nerve of arm inferior lateral cutaneous nerve of arm the inferior lateral cutaneous nerve of arm is a nerve found in humans and other animals. it is also called the inferior lateral brachial cutaneous nerve. it is a branch of the radial nerve that provides sensory and vasomotor innervation to the lower, lateral aspect of the arm. inferior lateral cutaneous nerve of armthe cutaneous innervation of the right upper limb, with inf. lat. cut. labeled at right.the suprascapular, axillary, and radial nerves. (inferior lateral cutaneous nerve of the arm not labeled, but cutaneous innervation would occur on the surface near the word 'radial' at upper left.)detailsfromradial nerveidentifierslatinnervus cutaneus brachii lateralis inferiorta98a14.2.03.051ta26433fma44949anatomical terms of neuroanatomy