T. Clark Brelje, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
Robert L. Sorenson, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
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Microvilli are cellular extensions on epithelial cells that increase surface area and minimize any increase in volume. There abundant on cells concerned with secretion and absorption. Microvilli increase the absorptive surface area upto 600-fold.
Each microvilli is 0.5 to 1.0 µm in length and about 100 nm in diameter.
Plasma Membrane (dark green)
Glycocalyx is present as a filamentous coating of the extracellular leaflet of the plasma membrane
Actin Filaments (blue) - bundles form the core of each microvilli