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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 How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Both amniocentesis and another procedure called chorionic villus sampling, in which doctors pluck bits of the placenta, isolate fetal cells that can reveal many genetic problems in an unborn baby with near certainty. If the technique is adopted more widely, it could see a decrease in the number of women subjected to far more invasive procedures such as amniocentesis and chorion villus sampling (CVS) which respectively carry a 1% and 2% risk of miscarriage. Chorionic villus sampling, to detect genetic abnormalities in the embryo or fetus in the first trimester. |
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