The definition of the amniotic sac is fluid-filled reservoir that acts as a cushion and temperature regulator.
- The amniotic sac is the reason why these acts don't harm the foetus. This membrane, which is fluid-filled, serves as a cushion for the growing foetus.
- The amniotic sac is sometimes referred to as the "bag of waters" by people. Since 98% of the fluid in the amniotic sac is water and 2% contains salts and infant cells, this reference is largely true.
- From the moment of conception, the amniotic sac starts to grow and fully develops within the first three weeks of pregnancy.
- The foetus does not bump into any other internal organs of the mother's body every time she starts and stops because of the amniotic fluid, or fluid inside the amniotic sac.
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