intestinal villi


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intestinal villi

[in′tes·tən·əl ′vil‚ī]
(anatomy)
Fingerlike projections of the small intestine, composed of a core of vascular tissue covered by epithelium and containing smooth muscle cells and an efferent lacteal end capillary.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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this is particularly relevant for our intestinal villi and microvilli,
In part of its course, it is ridged by the underlying submucosa to form circular folds and the whole surface is covered by mucosal finger-like or leaf-like intestinal villi. Between the bases of the villi are numerous simple tubular intestinal glands, while in the duodenum there are also submucosal glands.
In the gastrointestinal tractamyloid material attaches to the intestinal villi and causes malabsorption.
Biopsy proves conclusive in proving the damage of small intestinal villi. Biopsy results are conclusive than blood tests.
Intestinal villi are the main site of nutrient absorption and their better development could be the reason for higher nutrient absorption (Hanczakowska and Swiatkiewicz, 2012).
Our studies revealed that mice exposed to UFP, collected near downtown Los Angeles, California, displayed increased oxidative products of arachidonic and linoleic acids, accompanied by changes in villus lengths and macrophage/ neutrophil infiltrates in the intestinal villi, whereas D-4F administration mitigated these effects.
The histological studies of the jejunum wall of the white non-pregnant rats that consumed 1.0% solution of sodium chloride (experience 4) have shown a reduction of intestinal villi length by 18.24% (P [less than or equal to] 0.05), an increase in the crypts width by 25.62% (P [less than or equal to] 0.05), the reduction of the area of villus nuclei enterocytes by 28.98% (P [less than or equal to] 0.05), the increased number of goblet cells by 78.63% (P [less than or equal to] 0.05) as compared to the control.
Maintaining a healthy gut wall and support of intestinal villi
This study revealed that the thickness of intestinal villi gradually decreased from the anterior to the posterior section.
The increased surface area was reported to be a result of the enterocytes of the intestinal villi undergoing considerable hypertrophy (Lee & Cossins 1988).