Microvilli are microscopic cellular membrane protrusions that increase the surface area of cells, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction. (adapted from Wikipedia)

Image by Don Fawcett, MD

Thousands of microvilli form a structure called the brush border that is found on the apical surface of some epithelial cells, such as the small intestinal Microvilli are also of importance on the cell surface of white blood cells, as they aid in the migration of white blood cells. (Adapted from wikipedia)

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