The extraembryonic membrane that contains fluid that surrounds and cushions the developing embryo and fetus is known as the
A) yolk sac.
B) amnion.
C) allantois.
D) chorion.
E) uterus.

Question

Quizplus · Accepted Answer

The amnion is the extraembryonic membrane that contains fluid that surrounds and cushions the developing embryo and fetus. The yolk sac is involved in providing nutrients to the developing embryo, while the allantois and chorion are also important extraembryonic membranes but do not have the same function as the amnion. The uterus is the muscular organ in which the fetus develops, but it is not an extraembryonic membrane.

The Extraembryonic Membrane That Contains Fluid That Surrounds and Cushions