+Amnion is the innermost [fetal membrane](/wiki/fetal_membrane) that encloses the developing [embryo](/wiki/embryo) in amniotes, forming a fluid-filled sac. This protective cushion, the amniotic sac, shelters the growing life from external shock and allows for free movement.
+## See also
+- [Amniotic Fluid](/wiki/amniotic_fluid)
+- [Fetus](/wiki/fetus)
+- [Placenta](/wiki/placenta)
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