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Dermatomes
(Sensations via Nerve Root to the Spinal Cord)


Medically Reviewed By: William C. Shiel, Jr., MD, FACP FACR

Picture of Body Dermatomes

The nerves from the spinal cord supply sensation (for example, pain, touch, temperature) to the body. Each nerve supplies sensation to a specific area as noted in the diagram above. The different segments of the spinal cord are as follows:

  • Cervical (neck and arms): 8 nerves, C2-C8 (note that C1 has no sensory distribution)

  • Thoracic (arms, upper/mid back): 12 nerves, T1-T12

  • Lumbar (lower back, legs): 5 nerves, L1-L5

  • Sacrum (buttock area, legs): 5 nerves, S1-S5

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Last Editorial Review: 7/16/2012




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