lexihaywood4377 lexihaywood4377

24-10-2017
Biology

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What is the job of the arrector pili muscle how is this related to the phenomenon called goosebumps?

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04-11-2017

The arrector pili muscle is the muscle connected to our, and all mammals, hair follicles. When it contracts it causes the hair to become erect causing a "goosebump."

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