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    3. What causes "goosebumps"?
    What causes "goosebumps"?

    Everyone gets goosebumps when it's cold or they are scared. What is the mechanism that triggers it and why?

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    +1  Views: 2911 Answers: 1 Posted: 14 years ago
    Tags: health body skin
    Raider_retired 3_29_

    T.U. for my friend, Volcan

    Commented 14 years ago
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      1 Answer

      Goose bumps are created when tiny muscles at the base of each hair, known as arrectores pilorum, contract and pull the hair erect. The reflex is started by the sympathetic nervous system, which is in general responsible for many fight-or-flight responses. They are created when one is scared, cold or has deep emotional feelings.

      14 years ago. Rating: 1
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