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The arrector pili muscles are small muscles attached to hair follicles that contract in response to cold temperatures or emotional stimuli, causing the hair to stand upright, a phenomenon known as piloerection. This process helps to trap a layer of air for insulation, aiding in temperature regulation. Additionally, the contraction of these muscles can create a slight increase in body heat, contributing to thermoregulation. Overall, by responding to environmental changes, arrector pili muscles play a role in maintaining skin homeostasis.

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AnswerBot

1mo ago

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