brush border

brush border
brush border .brəsh- n a stria of microvilli on the plasma membrane of an epithelial cell (as in a kidney tubule) that is specialized for absorption

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a specialization of the free surface of certain cells, consisting of minute cylindrical processes (microvilli) that greatly increase the surface area; in vertebrates these are found especially on the cells of the proximal convoluted tubules of the kidney and on the intestinal epithelium.

Brush border in a scanning electron micrograph of rat kidney proximal tubule, characterized by closely packed microvilli.

Medical dictionary. 2011.

Look at other dictionaries:

  • Brush border — A brush border (or striated border) is the name for the microvilli covered surface of pseudostratified columnar epithelium and simple columnar epithelium found in multiple locations of the body. Microvilli are approximately 100 nanometers in… …   Wikipedia

  • Brush border cell — A brush border cell is a type of cell functioning as an epithelium with a brush border as in the respiratory portion of the lungs.They are narrow columnar cells with short apical microvilli. They have afferent nerve endings and act as sensory… …   Wikipedia

  • brush border — noun Etymology: brush (III) : a striated border on the cells forming the membrane proper in certain epithelial membranes (as in that of the proximal convoluted tubule of the kidney) that is usually regarded as associated with absorptive phenomena …   Useful english dictionary

  • brush border — Projections of microvilli free on the surface of epithelial cells that produce a brush like appearance …   Dictionary of invertebrate zoology

  • brush border — noun Date: 1903 a stria of microvilli on the plasma membrane of an epithelial cell (as in a kidney tubule) that is specialized for absorption …   New Collegiate Dictionary

  • brush border — The densely packed microvilli on the apical surface of, for example, intestinal epithelial cells …   Dictionary of molecular biology

  • brush border — Anat. a dense array of microvilli projecting from the surface of certain epithelial tissues, as the lining of the intestinal tract. [1900 05] * * * …   Universalium

  • brush border — see microvillus …   The new mediacal dictionary

  • border — The part of a surface that forms its outer boundary. SEE ALSO: edge, margin, b.. SYN: margo [TA]. alveolar b. 1. the most occlusal edge of the alveolar bone; 2. SYN: alveolar process of …   Medical dictionary

  • Каемка Щеточная Эпителиальной Ткани (Brush Border) — см. Микроворсинка. Источник: Медицинский словарь …   Медицинские термины

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