The amniotic sac is a cushioned membrane that protects the fetus, umbilical cord, placenta and other fluids in a mother’s womb. A baby born with its amniotic sac intact is unique for both ...

Viewer discretion is advised. A video from a Spanish hospital captures the moment a baby is born within the amniotic sac, an occurrence that only happens 1 in every 80,000 births. It is also known ...

The chorion lies closest to the placenta. The chorionic sac encompasses the fetus and ... containment of the amniotic fluid, and secretion of substances into the amniotic fluid.

Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this makes for a high-risk pregnancy, advances in monitoring and treatment have ...

The amniotic sac houses the baby and the amniotic fluid. The placenta attaches to the wall of the sac and circulates nutrients and oxygen to and wastes from the baby via the vein and arteries that ...