A fluid-filled sac that cushions and protects a growing embryo. Amniotic sac. The amniotic sac is like a water balloon that surrounds and protects a baby inside the womb.
Amniotic Sac: A fluid-filled sac that cushions and protects a growing embryo. Amniotic sac. The amniotic sac is like a water balloon that surrounds and protects a baby inside the womb.
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