Follicle, hair

Follicle, hair
: A sac from which a hair grows and into which sebaceous (oil) glands open. The follicle is lined by cells derived from the epidermal (outside) layer of skin. "The human hair follicle is a dynamic structure that generates hair through a complex and exquisitely regulated cycle of growth and remodelling governed by numerous genes" (Siobhán A. Jordan, in Molecular Medicine Today).

Medical dictionary. 2011.

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  • follicle — n. 1) (in anatomy) a small secretory cavity, sac, or gland, such as any of the cavities in the ovary in which the ova are formed. See also: Graafian follicle, hair follicle 2) (in ophthalmology) any of the smooth translucent elevations of the… …   The new mediacal dictionary

  • Hair transplantation — is a surgical technique that involves moving skin containing hair follicles from one part of the body (the donor site) to bald or balding parts (the recipient site). It is primarily used to treat male pattern baldness, whereby grafts containing… …   Wikipedia

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  • Follicle — Fol li*cle, n. [L. folliculus a small bag, husk, pod, dim of follis bellows, an inflated ball, a leathern money bag, perh. akin to E. bellows: cf. F. follicule. Cf. 2d {Fool}.] 1. (Bot.) A simple podlike pericarp which contains several seeds and… …   The Collaborative International Dictionary of English

  • follicle — [fäl′i kəl] n. [ModL folliculus < L, a small bag, husk, pod, dim. of follis, bellows < IE base * bhel , to blow up, swell > BALL1, BULL1] 1. Anat. a) any small sac, cavity, or gland for excretion or secretion [a hair follicle] b) …   English World dictionary

  • follicle mite — n any of several minute mites of the genus Demodex that are parasitic in the hair follicles * * * either Demodex brevis or D. folliculorum …   Medical dictionary

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