intestinal villi

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villus

 [vil´us] (L.)
a small vascular process or protrusion, as from the free surface of a membrane.
arachnoid villi microscopic projections of the arachnoid into some of the venous sinuses.
chorionic villi see chorionic villi.
intestinal villi multitudinous threadlike projections covering the surface of the mucous membrane lining the small intestine, serving as the sites of absorption of fluids and nutrients.
synovial villi slender projections from the surface of the synovial membrane into the cavity of a joint; called also haversian glands.

in·tes·ti·nal vil·li

[TA]
projections (0.5-1.5 mm long) of the mucous membrane of the small intestine; they are leaf-shaped in the duodenum and become shorter, more finger-shaped, and sparser in the ileum.
Synonym(s): villi intestinales [TA]

intestinal villi

the multitudinous threadlike projections that cover the surface of the mucosa of the small intestine and serve as the sites of absorption (by active transport and diffusion) of fluids and nutrients.

in·tes·ti·nal vil·li

(in-tes'ti-năl vil'ī) [TA]
Projections (0.5-1.5 mm in length) of the mucous membrane of the intestine; they are leaf-shaped in the duodenum and become shorter, more finger-shaped, and sparser in the ileum.
References in periodicals archive ?
Review on chicken intestinal villus histological alterations related with intestinal function.
The replenishment of the absorptive cells and goblet cells fallen off from the top of intestinal villus is provided by the continual proliferation of the undifferentiated cells.
CORT administration causes decreased small intestinal villus height (Hu and Guo, 2008), which leads to a decline of absorptive area (Yamauchi and Tarachai, 2000), and the shortened small intestine length induced by CORT administration further lowered total absorption area of the small intestine, and subsequently decreased the small intestinal absorptive capacity.
Effects of fasting and refeeding on structures of the intestinal villus and epithelial cell in White Leghorn hens.
In conclusion, CORT administration delays proliferation of intestinal epithelial cell, which in turn lowers intestinal villus height and crypt depth, and then subsequently impairs absorptive (Xylose absorption) capacity of small intestine of broilers.
When BC has been used in supplementary feeds for piglets pre-weaning, intestinal villus height has increased (King et al.
05), but failed to alter the small intestinal villus morphology, DNA, or protein content of gastrointestinal mucosa.