These two micrographs show the outer cell surface of the epithelial cell border in intestine (upper) and stomach (lower) tissue. This surface, called the glycocalyx, is composed of negatively charged...

Filaments extend from microvilli of the epithelial cells in the intestine of the bat, Moytis lucifugus in these two high magnification electron micrographs. These filaments, which are 2.5-5nm thick, ...

This electron micrograph shows the plasma membrane of epithelial cells of the brush border of the cat intestine, obtained from a thin section parallel to the free surface. The ability to visualize ce...