Cutaneous innervation: Ulnar nerve
Medial aspect of the palmar and dorsal surfaces and the medial 2 digits.
Cutaneous innervation: Median nerve
Lateral aspect of the palmar surface of the hand and lateral 3 digits
Cutaneous innervation: Radial nerve
Most of the posterior aspect of the forearm.
Lateral aspect of the dorsal surface of the hand and lateral 3 digits.
PHOTO
Cutaneous innervation: Axillary nerve
The ‘regimental badge’ region - the skin over the lower deltoid
Cutaneous innervation: Musculocutaneous nerve
The lateral aspect of the forearm