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n. pl. mi·cro·vil·li (-vĭl′ī′)
Any of the minute hairlike structures projecting from the surface of certain cells, such as those lining the small intestine.

mi′cro·vil′lar (-lər) adj.


n, pl -li (-laɪ)
(Physiology) physiol a thin protuberance present in great abundance at the surface of some epithelial cells, notably in the gut, thus increasing the surface area available for absorption


(ˌmaɪ kroʊˈvɪl əs)

n., pl. -vil•li (-ˈvɪl aɪ)
any of the fingerlike projections of the surface of an epithelial cell.
References in periodicals archive ?
The brush border enzymes in the microvilli complete the last phase of digestion before the sugars are absorbed into the body.
The researchers found that the cells in the model had successfully differentiated into a mature epithelium layer with all four of the major intestinal cell types and displayed important small intestine characteristics such as tight junctions, polarized microvilli, and secretion of digestive enzymes.
The cells of the terminal buds contained many folding of basal plasma membrane and possessed short microvilli on luminal side at 30 cm CVRL (141st day).
Cisplatin nephrotoxicity is characterized by morphological destruction of intracellular organelles, cellular necrosis, loss of microvilli, alterations in the number and size of the lysosomes and mitochondrial vacuolization, followed by functional alterations including inhibition of protein synthesis, GSH depletion, lipid peroxidation and mitochondrial damage8.
Biologists, clinicians, and other researchers from the US, Asia, and Europe address the basic molecular mechanisms of cell polarity, such as the roles of membrane lipids and proteins involved in membrane trafficking, including the exocyst and molecular trafficking machinery; specific modifications of the cell surface, such as cilia and microvilli, as well as laminins; the membrane trafficking of the transporters involved; and how epithelial cells are a barrier to interaction with the microbiome.
Visualization of mucosal layer of intestinal tract with SEM under higher magnification revealed that the microvilli were densely arranged on the surface of mucosal membrane of anterior intestine and abundant secretory gland cells were be mingled with columnar cells.
If your microvilli count goes down, you'll have a harder time getting nutrients like iron, zinc, and fatty acids into your bloodstream, and your metabolism will likely slow.
Like sabellids (Lawrence and Krasne, 1965; Ermak and Eakin, 1976), the cerebral ocellar photoreceptors of serpulids are rhabdomeric in nature, with the elaborated photoreceptive membranes being formed from microvilli that project into a pigment cup (Figs.
Acute exposures did not have much effect, but chronic exposure diminished the absorptive projections on the surface of intestinal cells called microvilli, showed the findings published in the journal NanoImpact.
Intercellular junctions, numerous slender surface microvilli, and microvilli-lined lumina were observed [Figure 1]i,[Figure 1]k,[Figure 1]l.
The liver cells in turn are covered with microvilli - fingerlike protrusions that "massively enlarge" the cell surface area in contact with blood, said Dr Markus Heim, a liver researcher at the University of Basel.
Absorptive (principal) cells exhibit many microvilli in their free face (Figure 3A) and rest on a thick basal lamina, where cytoplasmic projections are observed (Figure 3B).