1 Cardiomyopathy and Women's health symptoms and Movement symptoms (12 causes) 2  Cardiomyopathy and Women's health symptoms and Muscle symptoms (12 causes) 3  Cardiomyopathy and Women's health symptoms and Nerve symptoms (12 causes)  Cardiomyopathy and Women's health symptoms and Heart symptoms (11 causes)
chorion. the outermost of the fetal membranes, composed of trophoblast lined with mesoderm; it develops villi, becomes vascularized by allantoic vessels, and forms the fetal part of the placenta. chorion frondosum. the part of the chorion covered by villi.
Chorionic villus sampling. Introduction. Chorionic villus sampling (CVS) is a test you may be offered during pregnancy to check if your baby has a genetic or chromosomal condition, such as Downâs, Edwards' or Patau's syndromes. It involves removing and testing a small sample of cells from the placenta (the organ linking the motherâs blood supply with her unborn babyâs).