Superior lateral cutaneous nerve of arm
Suprascapular and axillary nerves of right side, seen from behind.
Cutenaous innervation of the arm. Innervation area of Axillary, sup. lat. cut. (C5-C6) is seen in blue at top.
Details
From	axillary nerve
Identifiers
Latin	nervus cutaneus brachii lateralis superior
TA98	A14.2.03.061
TA2	6442
FMA	65303
Anatomical terms of neuroanatomy [edit on Wikidata]

The superior lateral cutaneous nerve of arm (or superior lateral brachial cutaneous nerve) is the continuation of the posterior branch of the axillary nerve, after it pierces the deep fascia. It contains axons from C5-C6 ventral rami.

Structure

It sweeps around the posterior border of the deltoideus and supplies the skin over the lower two-thirds of the posterior part of this muscle, as well as that covering the long head of the triceps brachii.