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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

villus

[′vil·əs]
(anatomy)
A fingerlike projection from the surface of a membrane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Results: Two thousand one hundred eighty-five procedures were performed (1853 amniocenteses, 326 chorionic villus sampling, and 6 cordocenteses).
C, Hofbauer cells are closely packed and confluent in the stroma of this CD163-stained tertiary chorionic villus. D, CD68 staining reveals the characteristic macrophage appearance of the Hofbauer cells.
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.
DISCUSSION: Chorionic villus sampling has emerged as the only safe invasive prenatal diagnostic procedure in the first trimester.
In contrast to invasive diagnostic tests like amniocentesis and chorionic villus sampling (CVS), that carry one to two per cent risk of causing miscarriages, Veracity does not pose any threat to the foetus, Anastassiades said.
Currently, prenatal diagnosis of Wilson disease is performed by analyzing fetal cells collected by either chorionic villus sampling or amniocentesis.
"This new method of risk assessment has resulted in a shift to first trimester diagnostic testing by way of chorionic villus sampling (CVS) in the high-risk group of women identified by screening with nuchal translucency and serum biochemistry, and also far less diagnostic testing, which itself carries a risk of miscarriage.
However, Dr Al Hejari revealed many still chose to undergo a Chorionic Villus Sampling (CVS) test at around 11 weeks and then get an abortion if a hereditary disease was detected, often travelling abroad for the procedure - including to Saudi Arabia, Iran and Egypt.
To contain the spread of this fatal disease, his foundation also creating awareness amongst people and advised those families where already a thalassemia patients exist to do Chorionic villus sampling (CVS) test after three months of pregnancy and if the test was positive the doctors advised for abortion.
But it identifies fewer chromosomal abnormalities than combination screening or the more invasive chorionic villus sampling and amniocentesis.