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 front, with the right arm (left) labelled with the names of the spinal nerves (cervical, neck, C; and thoracic, chest, T) that supply them: C3, C4, C5, C6, C7, C8, T1, and T2. Dermatomes (colour-coded) are areas of skin supplied by spinal nerves. For the rear of the arm, see image C016/6841.
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