A member asked:

What is the percentage composition of maternal and fetal blood in the umbilical cord?

A doctor has provided 1 answer

Odd question: The only blood in the umbilical cord is the babies. The babies blood comes to and passes close by the maternal circulation contained in the wall of the uterus. The nutrients of mothers blood pass through by diffusion to enter babies blood,and babies waste products are drawn off by mothers blood. There are occasional microscopic amounts of fetal cells that pass into mothers circulation & vise versa

Answered 12/3/2014

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What is the definition or description of: maternal-fetal medicine?

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