dictionary help| arrectores pilorum --> arrector pili muscles | medical dictionary |
Bundles of smooth muscle fibres, attached to the deep part of the hair follicles, passing outward alongside the sebaceous glands to the papillary layer of the corium; they act to pull the hairs erect, causing "goose bumps" or "goose flesh" (cutis anserina).
Synonyms: musculi arrectores pilorum, arrectores pilorum, erector muscles of hairs.
(05 Mar 2000)
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