close
    What causes "goosebumps"?

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

    +1  Views: 2319 Answers: 1 Posted: 10 years ago
    Tags: health body skin
    Raider_retired 3_29_

    T.U. for my friend, Volcan

    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.



    Top contributors in Uncategorized category

     
    ROMOS
    Answers: 18064 / Questions: 153
    Karma: 1101K
     
    Colleen
    Answers: 47272 / Questions: 115
    Karma: 953K
     
    country bumpkin
    Answers: 11321 / Questions: 160
    Karma: 838K
     
    Benthere
    Answers: 2390 / Questions: 30
    Karma: 759K
    > Top contributors chart

    Unanswered Questions

    446543
    questions
    716875
    answers
    671458
    users