Movie TheaterAmniotic Fluid |
| Buy NowFrom The Biology of Prenatal Development. |
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Script: By 4 weeks the clear amnion surrounds the embryo in a fluid-filled sac. This sterile liquid, called amniotic fluid, provides the embryo with protection from injury. |
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All ages referenced to fertilization, not last menstrual period.
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Amniotic Fluid
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The Heart in Action
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The Limbs Bud
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Transparent Skin
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Cerebral Hemispheres
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The Yolk Sac
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