metaplasia

metaplasia
metaplastic /met'euh plas"tik/, adj.
/met'euh play"zheuh, -zhee euh/, n. Pathol.
the transformation of one type of tissue into another.
[1885-90; META- + -PLASIA]

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      in zoology, the conversion of one type of living cell or group of cells into another as a means of regeneration. For example, the damaged or removed lens of a salamander eye is replaced through the transformation of nearby pigmented iris cells into lens cells. The regeneration of brain tissue from epidermis in annelid worms is another well-documented example of metaplasia. The term metaplasia also refers to the abnormal replacement of cells of one type by those of another type.

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Universalium. 2010.

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Look at other dictionaries:

  • metaplasia — f. histol. Transformación de un tejido en otro de forma y funciones distintas. Medical Dictionary. 2011. metaplasia producción d …   Diccionario médico

  • metaplasia — s. f. [Medicina] Alteração de uma célula ou de um tecido em célula ou tecido de outro tipo.   ‣ Etimologia: meta + plasia …   Dicionário da Língua Portuguesa

  • metaplasia — [met΄ə plā′zhə] n. [ META + PLASIA] 1. abnormal change of one type of adult tissue to another 2. conversion of one tissue into another, as of cartilage into bone metaplastic [met΄əplas′tik] adj …   English World dictionary

  • Metaplasia — plasia Anaplasia – dedifferentiation Hyperplasia – physiological proliferation Increase in number of cells Neoplasia – abnormal proliferation Dysplasia – maturation abnormality Metaplasia – cell type conversion …   Wikipedia

  • metaplasia — Abnormal transformation of an adult, fully differentiated tissue of one kind into a differentiated tissue of another kind; an acquired condition, in contrast to heteroplasia. SYN: metaplasis …   Medical dictionary

  • metaplasia — n. an abnormal change in the nature of a tissue, usually in response to an environmental factor. For instance, columnar epithelium lining the bronchi may be converted to squamous epithelium (squamous metaplasia) following exposure to cigarette… …   The new mediacal dictionary

  • Metaplasia — En histología se llama metaplasia al cambio de un epitelio maduro por otro maduro que puede tener un parentesco próximo o remoto. Los fenómenos de metaplasia son completamente normales en los tejidos embrionarios que tienden naturalmente a… …   Wikipedia Español

  • Metaplasia — ► sustantivo femenino MEDICINA Transformación de un tejido vivo en otro de estructura y función diferentes. * * * En histología se llama metaplasia al cambio en las características propias de un determinado tipo celular que adopta las propias de… …   Enciclopedia Universal

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