Electron micrograph showing the brush border of intestinal epithelial cells of the rat. The parallel microvilli of the brush border are about 0.1 µm wide and 1.0 µm in length. Image by Jean Paul R...

Figures 446 (upper) and 447 (lower) from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Microvilli of the brush border of cat intestinal epithelium sho...

Portion of a proximal convoluted tubule from a rat kidney with experimental hemoglobinuria. A mass of dense hemoglobin completely fills the tubule lumen and outlines the microvilli of the brush border...

Portion of a proximal convoluted tubule from a rat kidney with experimental hemoglobinuria. A mass of dense hemoglobin completely fills the tubule lumen and outlines the microvilli (MV) of the brush b...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens) is the structure located nearest to the lumen. The elimination ...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens, ZO) located nearest to the lumen extends from arrow 1 to arrow ...