| 1. | In fluid-filled amniotic sac and so they do not function to breathe.
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| 2. | The bladder on the puny baby was working, refilling the dry amniotic sac.
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| 3. | It has not been proven that pressures are different in either amniotic sac.
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| 4. | Multiple gestation is evaluated by the number of placentae and amniotic sacs present.
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| 5. | The chorion and the amnion together form the amniotic sac.
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| 6. | He pierced her amniotic sac, making a therapeutic abortion necessary.
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| 7. | They are also less likely to share a placenta or amniotic sac, the researchers said.
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| 8. | There is a correlation between having a single yolk sac and having a single amniotic sac.
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| 9. | He used a tiny doll-sized optical instrument to penetrate the amniotic sac of the plump twin.
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| 10. | Amniotic fluid is present in the amniotic sac.
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