fetal part of placenta

fe·tal part of pla·cen·ta

, placenta fetalis (fē'tăl pahrt plă-sen'tă, fē-tā'lis)
The chorionic portion of the placenta, containing the fetal blood vessels, from which the umbilical cord develops; specifically, in humans, it develops from the chorion frondosum or villous chorion.
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