The amniotic sac, also called the bag of waters or the membranes, is the sac in which the embryo and later fetus develops in amniotes. It is a thin but...

The amniotic fluid is the protective liquid contained by the amniotic sac of a gravid amniote. This fluid serves as a cushion for the growing fetus, but...

to a residual external yolk sac. Diagram showing earliest observed stage of human ovum. 1 - Amniotic cavity 2 - Yolk-sac 3 - Chorion Diagram illustrating...

describing an excess of amniotic fluid in the amniotic sac. It is seen in about 1% of pregnancies. It is typically diagnosed when the amniotic fluid index (AFI)...

between two fluid-filled cavities at either end: the primitive yolk sac and the amniotic sac. The epiblast is adjacent to the trophoblast and made of columnar...

characterized by a deficiency of amniotic fluid, the fluid that surrounds the fetus in the abdomen, in the amniotic sac. The limiting case is anhydramnios...

the amniotic sac expands and occupy the majority of the volume of the gestational, eventually reducing the extraembryonic coelom (the gestational sac or...

when they first form. It fills with amniotic fluid, which causes the amnion to expand and become the amniotic sac that provides a protective environment...

or abnormal vaginal excretion. Administration of antibiotics if the amniotic sac bursts prematurely can prevent chorioamnionitis occurrence. The signs...

is born inside the entire amniotic sac (instead of just a portion of it). The sac balloons out at birth, with the amniotic fluid and child remaining inside...