- Peripheral Nervous System—Sensory Maps 83
Anterior upper limbLateral cutaneous n. of forearm
(musculocutaneous)Medial cutaneous n. of forearm & arm
(medial cord)Lower lateral
cut. n. of arm
(radial)Upper lateral
cut. n. of arm
(axillary)Intercosto-
brachial nerve (T2)Supra-
clavicular n.Posterior upper limbPosterior cutaneous n. of forearm & arm (radial)Lat. cut. n. of forearm (musculocut.)Medial cutaneous n. of forearm & arm
(medial cord)Low. lat. cut.
n. of arm (radial)Upper lateral
cut. n. of arm
(axillary) Supra-
clavicular n.Intercosto-
brachial nerve (T2)DRAWING 5-4 Cutaneous Nerves — Upper Limb