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Microvilli |
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Microvilli
specialized outgrowths of the plasma membrane of epithelial cells in animals and man. Microvilli are 500–3,000 nanometers in length and their diameter ranges from 50 to 100 nm. There are several thousand microvilli in a single cell. Sometimes their arrangement is orderly, as in the striated (brushlike) edges of the epithelial cells of the small intestine, where the microvilli are about 20 nm from each other. Microvilli increase the cell surface. Cuticles in vertebrate animals also consist of microvilli. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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