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YouTubeMr. WaitWhy
Your Spinal Cord Reacts Before You Feel Pain
Touch something hot and your hand pulls away before the pain even registers. That reaction isn’t coming from your brain first—it’s your spinal cord triggering a reflex arc. Sensory neurons send a signal straight to the spinal cord, which immediately activates motor neurons to pull your hand away. Only after that does the brain process the ...
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