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.

microvilli

Microscopic hairlike projections above the surface of specialised epithelial cells, which are composed of complex plasma membrane folds surrounding an actin microfilament core. Microvilli greatly increase total cell surface, and therefore also the absorptive capacity of cell.

microvilli

The millions of tiny, hair-fine, finger-like protrusions on the surface cells of EPITHELIUM which greatly increase the effective surface area so as to facilitate absorption. Microvilli occur especially on the secretory and absorptive surfaces, and are formed by extensions of the cell membrane. They have a central core of actin filaments bound together with the protein VILLIN.

单词	microvilli
释义	DictionarySeemicrovillus Microvilli 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. microvilli microvilli Microscopic hairlike projections above the surface of specialised epithelial cells, which are composed of complex plasma membrane folds surrounding an actin microfilament core. Microvilli greatly increase total cell surface, and therefore also the absorptive capacity of cell. microvilli The millions of tiny, hair-fine, finger-like protrusions on the surface cells of EPITHELIUM which greatly increase the effective surface area so as to facilitate absorption. Microvilli occur especially on the secretory and absorptive surfaces, and are formed by extensions of the cell membrane. They have a central core of actin filaments bound together with the protein VILLIN.
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