Medically reviewed by Kumkum S. Patel, MD Intestinal villi (singular: villus)are tiny, finger-like projections that line the ...

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.

One popular theory is that the position of your placenta might reveal your baby’s sex. It claims that an anterior placenta (attached to the front of the uterus) means you’re having a girl, while a ...

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 ...