Inside the spinal cord, millions of nerve cell bodies in the grey matter process sensory and motor input and handle automatic reflex actions. Touch a hot stove, and your hand jerks back instantly because of a spinal cord command. Conscious reactions occur when the spinal cord relays messages to and from the brain via nerve fibers in the white matter. You feel pain and know you have burned your fingers because a report was sent to your brain by way of the spinal cord as the spinal cord mediated a reflex action in your muscles.
AMAZING ISN’T IT?
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