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microvillus, any of numerous microscopic bristlelike protrusions that occur on the surface of a wide variety of cell types, including intestinal epithelial cells, neurons, photoreceptors (light-sensitive cells), and certain cells of the immune system, such as dendritic cells and lymphocytes.
Microvilli are polymorphic class protuberances surface found in some tissues and are loosely positioned in others. When compared with cilia, they are smaller and shorter.
Microvilli are minute, finger-like extensions of the plasma membrane present on the surface of various epithelial cells. Typically measuring around 0.1 micrometers in diameter and up to 2 micrometers in length, microvilli are narrower than cilia but thicker than them.
Microvilli are tiny, finger-like projections found on the surface of epithelial cells, especially in the intestines. These structures significantly increase the surface area available for absorption and secretion, playing a critical role in nutrient uptake and overall digestive efficiency.
Microvilli are finger-like membrane protrusions, supported by the actin cytoskeleton, and found on almost all cell types. A growing body of evidence suggests that the dynamic lymphocyte microvilli, with their highly curved membranes, play an important role in signal transduction leading to immune responses.
Definition. Microvilli are tiny, finger-like projections on the surface of epithelial cells lining the intestines, which increase the surface area for absorption. They play a crucial role in the digestion and absorption of nutrients by expanding the cell's surface exposed to the intestinal lumen.
Microvilli are extensions of villi and are made of microfilaments, specifically actin filaments, as well as cytoplasm. These actin filaments are crucial to the structure of microvilli as...
Definition. Microvilli are tiny, finger-like projections found on the surface of epithelial cells, particularly in the intestines and kidneys, that significantly increase the surface area for absorption.
A microvillus is a small protrusion of the apical plasmalemma located on the brush border of polarized epithelial cells, specifically covering the intestinal villi. Its primary function is to increase the overall surface area of the cell, which aids in the absorption of nutrients in the small intestine.
Microvilli are tiny finger-like projections found on the surface of certain cells. Their purpose is to increase the surface area of the cell's apical surface, resulting in more effective absorption or secretion of substances.