Describe the chorionic villi.
A)The chorionic villi contain fluid that surrounds and cushions the embryo or fetus.
B)The chorionic villi forms the interface between the embryonic/fetal system and the amniotic fluid.
C)The chorionic villi forms the umbilical cord.
D)The chorionic villi are structures that extend into the maternal tissues through which maternal blood flows.
E)The chorionic villi form the yolk sac.

Question

Quizplus · Accepted Answer

The chorionic villi are finger-like projections that extend from the chorion, the outermost membrane surrounding the embryo, into the uterine wall. They function to facilitate gas and nutrient exchange between the mother's blood and the developing embryo/fetus. Maternal blood flows through the intervillous spaces, which are the spaces between the chorionic villi.

Describe the Chorionic Villi