The ________ is a fluid-filled sac that cushions the embryo and maintains a constant temperature.

Question

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The amnion is a thin membrane that surrounds and protects the developing embryo. It is filled with amniotic fluid, which serves as a cushion to protect the developing fetus from physical harm, keeps it hydrated, and maintains a constant temperature for optimal growth. The placenta and umbilical cord are also important structures in fetal development, but they do not specifically function to cushion and maintain temperature. The germ disc refers to the cluster of cells that eventually differentiate into the various tissues and organs of the developing embryo.

The ________ Is a Fluid-Filled Sac That Cushions the Embryo