Dictionary of Human Evolution and Biology

Dictionary of Human Evolution and Biology

Villus, Villi

Very small fingerlike projection emanating from a surface; villi often serve to increase surface area, such as the villi of the small intestine, fallopian tubes, and other epithelial tissues.

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chorionic villus sampling (CVS) (... than amniocentesis. Aka chorionic villus biopsy.)
chorionic villi (Fingerlike growths that extend from extraembryonic membranes to implant into the uterine wall.)
extraembryonic mesoderm (... sac, and the chorionic villi.)
preimplantation genetic diagnosis (... preimplantation genotyping. Cf. chorionic villus sampling and amniocentesis.)
surface area (... the lungs or the villi in the small intestine.)