Dermatomes
Dermatomes are areas of skin that are primarily supplied by a single spinal nerve. There are 8 cervical nerves (note that C1 has no dermatome), 12 thoracic nerves, 5 lumbar nerves, and 5 sacral nerves. Each of these spinal nerves transmits sensation from a specific area of the skin to the brain. [1] Spinal nerve …
