A member asked:

What function does the yolk sac have in pregnancy and does it remain for the 9 months?

A doctor has provided 1 answer

Yes it remains: The innitial funtion of the yolk sac is to produce first blood cells of the little baby. Later on remains in pregnancy as a tiny white bubble. It can be seen after the placenta is delivered if you look carefully for it.

Answered 7/6/2012

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