There is another type called chorionic villi that lines the lumen of the placenta. Chorionic villi surround a developing fetus during pregnancy, enabling the exchange of gases and nutrients ...

In the human placenta, there are placental villi, and the surface of the villi consists of syncytiotrophoblast, also called barrier cells, that serve as the main barrier against foreign substances.

The chorion lies closest to the placenta. The chorionic sac encompasses the fetus and the amnion and is covered with chorionic villi until the 8th week. After the 8th week, these villi are ...

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Because the placenta is derived from the extraembryonic portion of the early embryo, the villus cells in the placenta have the same genetic composition as the cells in the fetus's tissues ...

Pro-inflammatory cytokines are modified during the multiplication of Trypanosoma cruzi within the placental chorionic villi and are associated with the level of infection via the signaling pathway ...