What structure allows for the exchange of oxygen and carbon dioxide between mother and fetus?
A) chorionic villi
B) umbilical cord
C) morula
D) chorion
E) amnion

Question

Quizplus · Accepted Answer

Chorionic villi are finger-like projections from the chorion that extend into the uterine wall and contain fetal blood vessels. These structures facilitate the exchange of oxygen, nutrients, and waste products between the maternal and fetal bloodstreams without the bloods mixing directly.

What Structure Allows for the Exchange of Oxygen and Carbon