Ralph Hutchings

Image 11 of 74
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Cross-section of microvilli in the human digestive tract showing the glycocalyx on the brush border. TEM X20,000 .The role of microvilli are to increase surface area which in turn increases absorption of the cell. Glycocalyx or cell surface coat is a layer on the outside of the plasma membrane. It keeps ions in and also serves in a protective role for the cell.