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What is a yoke sac?

jcndd Posted:

What is a yoke sac?

And what does it do for the baby? I haven't been able to find anything online that explains it well.

rdaley Posted:

Re: What is a yoke sac?

I could be way off here but I think it provides nutrients to the baby until the placenta takes over. Again, I could be way off.

jcndd Posted:

Re: What is a yoke sac?

Hmmm...ok, thanks! So it should only be seen on a sonogram until maybe the 1st trimester is over?

StepherG Posted:

Re: What is a yoke sac?

When I went to my sono at 6 week/4 days the technician pointed out the yolk sac and the baby. It all look like a beating lobster claw! I was hysterical laughing because I'm from Maine and my BIL keeps teasing that we're having a 'lobster' baby. I couldn't wait to show him the picture so he could get a laugh!

rdaley Posted:

Re: What is a yoke sac?

I am not sure exactly how long it can be seen on a sonogram.

soon2bMrs Posted:

Re: What is a yoke sac?


Posted by rdaley

I could be way off here but I think it provides nutrients to the baby until the placenta takes over. Again, I could be way off.



I think so too. I just saw a show about pregnancy and that is how they described it. I think they also said it becomes part of the baby circulatory system, if I am remembering correctly.

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