In humans the transparent sac that contains fluid that cushions the embryo and maintains a constant temperature and pressure is the:

Question

Quizplus · Accepted Answer

The amnion is the transparent sac that contains fluid that cushions the embryo and maintains a constant temperature and pressure during development. The yolk sac is responsible for providing nutrients to the developing embryo in some animals, but it does not contain fluid to cushion the embryo. The embryonic disc is the flattened structure that forms within the amniotic sac and gives rise to the embryo. The chorionic villus is a structure that forms on the outer layer of the embryo and helps to form the placenta. The chorion is the outermost membrane surrounding the embryo and helps to form the placenta, but it does not contain fluid to cushion the embryo.

In Humans the Transparent Sac That Contains Fluid That Cushions