fetal cotyledon

fe·tal cot·y·le·don

a unit of the fetal placenta supplied by the vessels of a stem villus; several such cotyledons may occur between two placental septa.
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04) fetal cotyledon CND number but not other measurements of vascularity.
Whole placentomes (the part of the placenta where nutrient exchange occurs between the fetus and dam), were collected at day 75 of gestation and separated into fetal cotyledon (COT) and maternal caruncle (CAR) tissues.