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yolk sac
Noun
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
hypernym
sac
membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
synonym
umbilical vesicle
vesicula umbilicus
vitelline sac
hypernym
sac
yolk sac vs sac
yolk sac vs sac
yolk sac vs umbilical vesicle
yolk sac vs vesicula umbilicus
yolk sac vs vitelline sac
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