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arrector pili muscle

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arrector pi·​li muscle | \ -ˈpī-ˌlī- How to pronounce arrector pili muscle (audio) , -ˈpil-ē- How to pronounce arrector pili muscle (audio) \

Medical Definition of arrector pili muscle

: one of the small fan-shaped smooth muscles associated with the base of each hair that contract when the body surface is chilled and erect the hairs, compress an oil gland above each muscle, and produce the appearance of goose bumps

— called also erector pili muscle, pilomotor muscle

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Dictionary Entries Near arrector pili muscle

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Cite this Entry

“Arrector pili muscle.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/arrector%20pili%20muscle. Accessed 27 Sep. 2021.

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