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Understanding: Sense of Touch
Image: iStockphoto.com/waldru

Understanding: Sense of Touch

How do you know if something is hot or cold? Rough or smooth? Your sense of touch, of course. But do you know how that feeling gets transferred from your fingers (or your toes, neck, or back) to your brain?

Discover how the nerve endings in the bottom layer of your skin, the dermis, send information to your spinal cord, which then carries it to your brain where the feeling is registered.

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