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bn:00078917n
Noun Concept
Categories: Embryology of cardiovascular system
EN
yolk sac  vitelline sac  umbilical vesicle  vesicula umbilicus  Exocoelomic cavity
EN
Membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional WordNet 3.0
Definitions
Relations
Sources
EN
Membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional WordNet 3.0 & Open English WordNet
The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast layer of the bilaminar embryonic disc. This is alternatively called the umbilical vesicle by the Terminologia Embryologica, though yolk sac is far more widely used. Wikipedia
A membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk Wikidata
IS A
sac
DESCRIBED BY SOURCE
Brockhaus and Efron Encyclopedic Dictionary
Internetowa encyklopedia PWN
MATERIAL USED
egg yolk
WordNet 3.0 & Open English WordNet
EN
yolk sac, vitelline sac, umbilical vesicle, vesicula umbilicus
Wikipedia
EN
yolk sac
Wikidata
EN
yolk sac
Wikipedia Redirections
EN
Exocoelomic cavity, Primitive yolk sac, Saccus vitellinus, umbilical vesicle, Umbilical vesicles, Vesicula umbilicalis, yolk-sac, Yolk sac cavity, Yolk sacs

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