Nope, this isn’t a small, prickly mammal with a flashy dye job, but a single intestinal epithelial cell. The colorful, hairlike structures are microvilli, which are designed to maximize the cell’s ...

The brush border consists of dense, finger-shaped protrusions (microvilli) on the surface of the intestinal epithelial cells, the cells of the outermost layer of the intestine. The microvilli are ...