yolk sac

(redirected from Exocoelomic cavity)
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Related to Exocoelomic cavity: yolk sac
  • noun

Synonyms for yolk sac

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

membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes

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