The Amnion or the Amniotic Sac
When a woman becomes pregnant and the fertilized egg attaches to the uterine wall, the egg is surrounded by a balloon-type bag called the amniotic sac. The sac is a strong material but can be damaged-- example, in a major traffic accident. Amniotic fluid within the sac surrounds the fetus in a special fluid environment in which the fetus can grow. It is a self-contained sac, until the sac breaks just before delivery or is broken by a doctor to hasten labor. The sac expands during the full 9 months, enlarging as the fetus grows. It cushions the baby from most low-impact activities - example, walking. It also protects the fetus from external infections, giving the fetus the best opportunity to thrive.
The membrane that forms a sac around an animal embryo is called the amniotic sac. The embryonic sac is a bag of fluid inside of a woman's womb where the unborn baby develops and grows.
Pregnant with no sac? You really need to talk to you're doctor about that. When you find out update the rest of us.
Placenta, umbilical cord, fetus, amniotic sac with amniotic fluid. Basically everything related to the fetus.
vacuoles
Swollen cell
the goats milk sac is called an udder.
It is called an ascus.
Ampulla
the goats milk sac is called an udder.
If a membrane-bound sac filled with large molecules of oil is suspended in a beaker of water, water will start to enter the sac. The sac will then swell.
The baby passes urine into the amniotic sac (bag of water) - but don't worry the water is constantly being cleaned and filtered, so the fluid is not dirty.