Cell Diagram Labeled Microvilli

Microvilli form a rather polymorphic class of surface protuberances that are regularly packed in some tissues and loosely positioned in oth ers.

Cell diagram labeled microvilli. 20 to 30 tightly bundled actin filaments are cross linked by bundling proteins. Other articles where microvilli is discussed. Simple cuboidal cells form this tubule with prominent microvilli on the luminal surface forming a brush border. Other functions of microvilli are secretion absorption adhesion of cells and mechanotransduction.

Microvilli also perform motility function. These microvilli create a large surface area to maximize the absorption and secretion of solutes na cl glucose etc the most essential function of this portion of the nephron. They make white blood cell migration possible. Microvilli on the surface of epithelial cells such as those lining the intestine increase the cell s surface area and thus facilitate the absorption of ingested food and water molecules.

Each of these villi is covered in even smaller finger like structures called microvilli. 5 6 7 and 8. Microvilli are covered in plasma membrane which encloses cytoplasm and microfilaments though these are cellular extensions there are little or no cellular organelles present in the microvilli. Microvilli store membrane and microfilament materials.

The cell membrane to form microvilli stable protrusions that resemble tiny bristles. Generally they are shorter and smaller in diameter than cilia. The internal walls of the small intestine are covered in finger like tissue called villi.