- Peripheral Nervous System—Sensory Maps 83
Anterior upper limb
Lateral 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 limb
Posterior 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