| chorion |
A membrane that surrounds both the yolk sac and the amnion; it has no apparent initial function but later fuses with the allantois to form the chorio- allantois membrane.
출처: www.urbanext.uiuc.edu/eggs/res02-definitions.html
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| chorionic villus sampling |
Method of prenatal diagnosis in which a small piece of fetal placenta is removed for genetic study. Can be performed in the first third of pregnancy.
출처: www.understandingnf1.org/glossary/
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| chorionic villus sampling |
Prenatal diagnostic procedure involving sampling the chorionic villi, generally performed between the tenth and twelfth weeks of pregnancy. The test can reveal many, but not all, genetic abnormalities. The decision to pursue and the appropriate method of prenatal diagnosis should be discussed with your health care provider.
출처: www.mpssociety.org/lib-glossary.html
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| chorion |
The cellular, outermost extraembryonic membrane, composed of trophoblast lined with mesoderm. It develops villi about two weeks after fertilization. Villi are the threadlike projections growing in tufts on the external surface of the chorion. At three weeks, it is vascularized by allantoic vessels.
출처: nmhm.washingtondc.museum/collections/hdac/Glossary...
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| chorionic villi |
The chorion develops chorionic villi, which are finger-like projections on its surface. The chorionic villi extend downward through the uterine lining into the maternal blood supply to help supply the developing embryo with oxygen and nutrients. A CVS test, or chorionic villi sampling, can detect abnormalities in the baby by the removal of tissues from what will be the placenta sometime between the 9 th to 11 th week of pregnancy. ...
출처: www.ican-online.org/resources/glossary.php
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