Microvilli Notes: Definitions & Explanations PDF | Download eBooks

Study Microvilli lecture notes PDF with biology definitions and explanation to study What is Microvilli?. Study microvilli explanation with biology terms to review biology course for online degree programs.

Microvilli Notes:

Microvilli are microscopic protrusions that extend from the cell membrane. These are distinct from flagella and those are larger and have a lash like structure. Microvilli increase the surface area of a cell for diffusion and have other functions too like aiding in absorption, cellular adhesion, secretion etc. Intestinal villi are small, finger-like projections that extend into the lumen of the small intestine. Each villus is approximately 0.5-1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which collectively form the striated or brush border. Each of these microvilli are much smaller than a single villus. The intestinal villi are much smaller than any of the circular folds in the intestine. Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption.

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