What is the difference between an amniotic sac and a yolk sac?

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What Is The Difference Between An Amniotic Sac And A Yolk Sac?

I had my first ultrasound today and my doctor said the everything looked great. He said he measured the yolk sac and the baby looked to be about 5 weeks, 4 days. What is the difference between the amniotic sac and the yolk sac?

(1 Answers)

Anonymous Wednesday 8th of June 2011 07:11:09 PM
amniotic sac contains the fluid that bathes and cushions the fetus, the yolk sac contains cholesterol nourishment (food)

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