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Any of numerous minute elongated projections set closely together on a surface, typically increasing its surface area for the absorption of substances.
- ‘The colon can be identified by its size and the absence of mucosal folds and villi; the inner surface is smooth.’
- ‘At this stage it is more or less spherical and covered with villi (frond-like protrusions); these provide a large surface area for exchange of gases, nutrients, water and waste with the maternal blood.’
- ‘Afterwards the samples were stained with haematoxylin-eosin to evaluate the number of villi, villous height and mucosal thickness and with PAS to identify mucous containing cells.’
- ‘Microscopic examination demonstrated hydropic degenerated villi with a circumferential trophoblastic cell proliferation and moderate atypia, consistent with a complete hydatidiform mole.’
- ‘Mutants were observed as non-staining ribbons on the surface of the villus.’
- ‘And the tiny hair-like projections on the cells - the villi (VIL-li) - shrink and may even disappear.’
- ‘The black stained villus projections are probably due to chronic smoke inhalation.’
- ‘Nutrients are absorbed in the small intestine through microscopically elongated villi.’
- ‘The tissue is sent to the laboratory where the fetal villi are dissected from the maternal decidua and either processed directly or cultured for chromosomal, DNA or biochemical analysis.’
- ‘Taste is determined on the tongue by tiny projections, called villi, which are able to sense relative proportions of the four tastes: salt, sour, yucky and Frosties.’
- 1.1 A fingerlike projection of the lining of the small intestine.
- ‘Esem reveals the extrusion of lipid droplets largely from enterocytes at the villus tips predominately for the proximal small intestine.’
- ‘They are absorbed by the villi of the small intestine and carried by the portal vein to the liver.’
- ‘Feathery threadlike intestinal absorptive villi change to club-shaped poorly functional absorpters.’
- ‘Although digestive enzymes are produced by the pancreas, the tips of the villi in the small intestine also contain digestive enzymes.’
- ‘Without villi, you can't absorb nutrients from food.’
- ‘So it stands to reason that when the membranes are damaged and the villi atrophied, nutrient absorption is reduced.’
- ‘Under the assault, that stretch of the digestive tract becomes inflamed and loses the fingerlike projections, or villi, that normally provide a vast surface area for absorbing digested nutrients.’
- ‘Clusters of tumor cells were found within the lymphatic vessels in the intestinal villi and also running along the superficial submucosa.’
- ‘One might speculate that defined formula diets at least maintained the number of villi per cm of ileum.’
- ‘These results suggest that villus atrophy in the small intestine is induced by C. parvum.’
- ‘The collateral damage of this attack includes the villi - tiny, hair-like projections that absorb nutrients.’
- ‘The protein causes an immunological reaction in the small intestine, resulting in the disintegration of the finger-like villi that facilitate the absorption of nutrients.’
- ‘Gluten sets off an auto-immune reaction in Coeliacs which causes a flattening of the hair-like villi in the mucosa of the small intestine and stops food being absorbed properly.’
- ‘Combined with a positive EMA confers a 99-percent chance of flattened intestinal mucosal villi.’
- ‘The light microscopy of intestinal tissue in 30 day old pups showed that goblet cells were not well formed, luminal part of the villi was damaged with a portion shredded off in the lumen with necrosis.’
- ‘In exchange for our walking around, finding interesting food and chucking it down our throats to feed to them, they will take that food and turn it into something that we can digest with the villi in our intestines.’
- ‘The small intestine is approximately 20 feet long and lined with millions of tiny villi that are like fingers or projections that have the primary responsibility for the absorption of nutrients.’
- ‘The lining of the small intestine is folded into finger-like projections, the villi, and deeper glands, the crypts.’
- ‘The inner lining of the large intestine lacks the villi that characterize the small intestine.’
- ‘The inner wall of the small intestine is covered with millions of microscopic, finger-like projections called villi.’
- 1.2 A fold of the chorion.
- ‘Chorionic villus sampling is usually performed between 10 and 12 weeks gestation.’
- ‘Amniotic fluid, chorionic villi, or fetal serum can be tested for evidence of West Nile virus infection.’
- ‘Placenta accreta is characterized by the presence of chorionic villi adjacent or adherent to myometrium, without gross or microscopic invasion of the villi into muscle wall.’
- ‘Even now we can diagnose many genetic diseases by amniocentesis and chorionic villus samples, but most of these cannot be cured.’
- ‘Chorionic villus sampling - tests a sample of the placenta, taken with a needle inserted through the abdomen or via the cervix.’
- ‘If chorionic villi are not detected, ectopic pregnancy should be suspected.’
- ‘Placenta increta is the invasion of the myometrium by chorionic villi.’
- ‘Chorionic villus sampling is a test available to all pregnant women.’
- ‘Chorionic villus sampling allows a very early diagnosis of serious genetic disorders.’
- ‘Usually, the placenta has 15 to 28 cotyledons that also contain chorionic villi and intervillous space.’
A long slender hair.
- ‘All details of her woodcarvings, even the villi, or small hairs on the stem of each plant, are done by hand with a knife.’
- ‘The formation of the attaching filaments and villi on the surface of the oocyte of Oryzias latipes were studied electron-microscopically.’
Early 18th century: from Latin, literally ‘shaggy hair’.
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