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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 ?
During transient shedding, rhabdomeric microvilli, which are highly organized during the night, become disorganized, and large membranous whorls, consisting of many layers of microvillar membrane, form at the base of the rhabdom.
Cordon bleu serves as a platform at the basal region of microvilli, where it regulates microvillar length through its WH2 domains.
pipiens treated with the substituted urea underwent a lethal disruption of the peritrophic membrane, cytoplasmic vacuolization and an extensive cellular microvillar disruption.
The microvillar membranes (MVMs) of the small intestinal epithelial cells were then partially purified according to the methods of Fujita.
Actin is the major cytoskeletal protein and involved in a variety of processes including cellular motility, intracellular transport, cytoskeletal structure, cell-surface mobility, cytokinesis, cytoplasmic streaming, clot retardation, microvillar movement, exocytosis and endocytosis, and probably chromosomal condensation and mitosis (Sheterline et al.
Consistent with this, the numerous pore canal filaments represent microvillar extensions of the epidermal cells that course through the physiologically living endo- and exocuticle, but are excluded from the calcite layer (seen in unshared AFM figures).
The activated toxins bind with high affinity to receptors present on the microvillar membrane of susceptible insect larvae (Hofmann et al.
Epidermis on the dorsal surface of the fin rays is non-tuberculate, consisting of flattened hexagonal cells with well developed microvilli or microvillar ridges with an average of about one pore (presumably a mucus pore) for every two cells.
At 11-12 weeks, opening of pharyngeal and anal membranes coincides with the massive arrival of intestinal microvillar enzymes in the AF.
Rotavirus infection induces an increase in intracellular calcium concentration in human intestinal epithelial cells: role microvillar actin alteration.
thuringiensis subsp, kurstaki strains used as a positive control, there were marked differences in the binding of the toxins to the microvillar brush border of the epithelial cells throughout the midgut of the larvae (Table 3).