Understanding the meaning of yolk sac - BoostVocab

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yolk sac

Synonyms of yolk sac Antonyms of yolk sac Examples of yolk sac Usage of yolk sac Parts of yolk sac Definition that contains yolk sac Words sounding like yolk sac Explanation of yolk sac

noun
membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
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Similar:

umbilical vesicle vesicula umbilicus vitelline sac

type of:
sac
noun
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
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type of:
sac

Explanation of yolk sac

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