D & L GRAPHICS / SCIENCE PHOTO LIBRARY D & L GRAPHICS / SCIENCE PHOTO LIBRARY
Arm nerve regions. Artwork of the muscles of the human body from the rear, with the right arm (right) labelled with the names of the spinal nerves (cervical, neck, C; and thoracic, chest, T) that supply them: C4, C5, T2. Dermatomes (colour-coded) are areas of skin supplied by spinal nerves. Numbered labels mark regions of the shoulder, arm and hand. For the front of the arm, see C016/6840.
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