EVERYDAY SCIENCE

Detailed explanation-1: -A thin-walled sac that surrounds the fetus during pregnancy. The sac is filled with liquid made by the fetus (amniotic fluid) and the membrane that covers the fetal side of the placenta (amnion). This protects the fetus from injury. it also helps to regulate the temperature of the fetus.

Detailed explanation-2: -The amnion, a thin ectodermal membrane lined with mesoderm, grows to enclose the embryo like a balloon. It is filled with a clear fluid, which is generated from many sources, such as the fetal skin, the amnion itself, the fetal kidneys, and possibly the fetal vessels.

Detailed explanation-3: -The amnion is the innermost extraembryonic membrane that eventually surrounds the fetus of amniotes, and contains the amniotic fluid. Next to its function in in utero development, the amnion has been shown to have an important potential for clinical applications.

Detailed explanation-4: -The amniotic membrane is composed of 2 distinct layers that surround the embryo: the amnion that lines the inner surface of the amniotic sac interfacing with the fetus, and the chorion that is the outer layer in contact with maternal tissue.

Detailed explanation-5: -The amnion is a transparent sac filled with a colorless fluid that serves as a protective cushion during embryonic development. This amniotic fluid also permits the developing embryo to exercise.