During cold conditions, the hairs are raised | vedclass

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(D) The $Erector$ $	ext{pilli}$ (also known as $Arrector$ $	ext{pili}$) are small smooth muscles attached to the hair follicles.When the body experi

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Erector pilli

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(D) The $Erector$ $	ext{pilli}$ (also known as $Arrector$ $	ext{pili}$) are small smooth muscles attached to the hair follicles.When the body experiences cold, these muscles contract, causing the hair to stand upright (piloerection).This action helps trap a layer of air near the skin surface, which acts as an insulator to reduce heat loss from the body.

During cold conditions, the hairs are raised and brought into a more or less vertical position by:

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