Cutaneous Innervation of Upper Limb
Anatomy
Anterior (palmar) view Posterior
(dorsal) view, Supraclavicular nerves (from cervical plexus C3, 4), Axillary
nerve, Superior lateral brachial cutaneous nerve (C5, 6), Radial nerve, Inferior
lateral brachial cutaneous nerve (C5, 6), Lateral antebrachial cutaneous nerve (C5,
6 [7]) from musculocutaneous nerve), Axillary nerve, Superior lateral brachial cutaneous
nerve (C5, 6), Supraclavicular nerves, Medial, intermediate, and lateral
branches (C3, 4),
Radial nerve, Posterior brachial cutaneous nerve (C5–8), Inferior
lateral brachial cutaneous nerve, Posterior antebrachial cutaneous nerve (C[5],
6–8), Lateral antebrachial cutaneous nerve (C5, 6 [7]) from musculocutaneous nerve),
Radial nerve, Superficial branch and dorsal digital branches (C6–8), Intercostobrachial
nerve (T2) and medial brachial cutaneous nerve (T1), Medial antebrachial cutaneous
nerve (C8, T1), Radial nerve, Superficial branch (C6–8), Median nerve, Palmar
branch and common and proper palmar digital nerves (C6–8), Ulnar nerve (C8, T1),
Palmar branch, Common and proper palmar digital nerves, Dorsal branch and
dorsal digital nerves, Proper palmar digital branches, Median nerve, Proper
palmar digital nerves
Note: Division variable between
ulnar and radial innervation on dorsum of hand and often aligns with middle of
4th digit instead of 3rd digit as shown.
