anagen
Growth phase of the hair cycle, lasting about 3–6 years in human scalp hair. [G. ana, up, + -gen, producing]

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an·a·gen 'an-ə-.jen n the active phase of the hair growth cycle preceding telogen

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n.
the growth phase of a hair follicle, lasting two to three years. It is followed by a transitional stage, called catagen, which lasts for about two weeks, and then a resting phase, telogen. On average about 85% of hairs are in anagen and hence growing actively. There are about 100, 000 hairs on the human scalp and up to 100 may be shed each day.

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an·a·gen (anґə-jen) the long first phase of the hair cycle, during which synthesis and growth take place.

Medical dictionary. 2011.

Look at other dictionaries:

  • anagen — n. the growth phase of a hair follicle, lasting two to three years. It is followed by a transitional stage, called catagen, which lasts for about two weeks, and then a resting phase, telogen. On average about 85% of hairs are in anagen and hence… …   The new mediacal dictionary

  • anagen — noun The production of new hair from stem cells …   Wiktionary

  • anagen — n. growth stage of the hair cycle that lasts around 3 to 6 years in human scalp hair …   English contemporary dictionary

  • anagen — [ anədʒ(ə)n] noun Physiology the growing phase of a hair follicle. Origin 1920s: from ana + gen …   English new terms dictionary

  • anagen phase — anagen …   Medical dictionary

  • anagen effluvium — abnormal loss of hair during the anagen phase; it sometimes follows administration of certain cancer chemotherapeutic agents or exposure to certain chemicals, or in association with various other factors and diseases …   Medical dictionary

  • loose anagen hair syndrome — a syndrome of unknown etiology, usually seen in children, in which scalp hair can be plucked easily and painlessly during the anagen part of the hair cycle, owing to defective anchorage of the hair shaft to the follicle; there is also slowing of… …   Medical dictionary

  • АНАГЕН — (anagen) фаза роста волосяного фолликула, длящаяся от двух до трех лет. За ней следует промежуточная фаза, называемая катагеном, и окончательная фаза, телоген, каждая из которых продолжается примерно две недели. В среднем 85% по времени волосы… …   Толковый словарь по медицине

  • Hair follicle — A hair follicle is part of the skin that grows hair by packing old cells together. Attached to the follicle is a sebaceous gland, a tiny sebum producing gland found everywhere except on the palms, lips and soles of the feet. The thicker density… …   Wikipedia

  • Alopecia — This article is about the medical condition. For the 2008 album by Why?, see Alopecia (album). Alopecia Classification and external resources Alopecia in a 33 year old man. ICD 10 …   Wikipedia

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