villus


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villus

1. Zoology anatomy any of the numerous finger-like projections of the mucous membrane lining the small intestine of many vertebrates
2. any similar membranous process, such as any of those in the mammalian placenta
3. Botany any of various hairlike outgrowths, as from the stem of a moss

villus

[′vil·əs]
(anatomy)
A fingerlike projection from the surface of a membrane.
References in periodicals archive ?
Dietary supplementation with basil seed insignificantly (P>0.05) improved the villus size of duodenum, jejunum, and ilium.
The subjectivity of C/V ratios is further highlighted by the fact that individual crypt tubes often enter their respective basins at an angle to ensure that they cannot be used, whereas the junctional zone between the start of a villus and the upper margins of a crypt tube are ill-defined and hence extremely dependent on subjective assessments.
Nassiri Moghaddam and Alizadeh Ghamsari [21] observed that 1.0% and 1.5% dietary Gln supplementation increased the duodenum and jejunum VH, VW, and villus surface area of broiler chickens at days 21 and 42 of age.
In light microscopic evaluation of the ileum preparations, a normal ileal tissue villus histological structure was observed in Group I.
Villus height, crypt depth, villus : crypt ratio, and villus area in the ileum showed similar results at hatch and at two days of age (Figure 1).
In the ileum villus height in the control group was 391.06 19.72 m, while in the experimental group 456.78 27.18 m.
The improvised device (standard pistol grip) was mounted onto the syringe which was being used to aspirate chorionic villus samples or other large volume aspirations.
From face-on photos of the attachment disc taken at high magnification, we counted villus density in as many one-square-micrometer (1 [micro][m.sup.2]) areas as possible for each antennule studied.
However, hydroalchoholic plant extracts from sage, thyme, and rosemary leaves did not exert any influence on intestinal villus height, villus surface area and crypt depth.
Villus height was measured in at least 10 villus longitudinal sections (4 animals per group).