Nerve supply of the human arm

Cutaneous innervation refers to the area of the skin which is supplied by a specific nerve.

Modern texts are in agreement about which areas of the skin are served by which nerves, but there are minor variations in some of the details. The borders designated by the diagrams in the 1918 edition of Gray's Anatomy, provided below, are similar but not identical to those generally accepted today.

Arm and shoulder

Forearm

Hand

gollark: I should see what happens if I do rotate it by 12 degrees 2928463638283 times.
gollark: I wonder if the frequent non-90deg rotations will degrade the image somehow.
gollark: At some point, yes.
gollark: Not now. I'm on my phone.
gollark: GTechâ„¢ is extracting 23PW at present, yes.
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