| yolk sac |
membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes; circulates nutrients to the developing embryo
출처: wordnet.princeton.edu/perl/webwn
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| yolk sac |
The small sac that, on developing slider turtle embryo, is attached to the plastron and gives the animals the nitrients needed to survive during development.
출처: www.geocities.com/theslidersmarsh/glossary.html
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| yolk sac |
where the embryo develops
출처: library.thinkquest.org/J0110481/gloss.html
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| yolk sac |
a membrane-bound compartment in the amniotic egg which contains stored food for the developing embryo.
출처: www.palaeos.com/Vertebrates/Lists/Glossary/Glossar...
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| yolk sac |
The follicle where an ovum and its surrounding yolk are held until the yolk matures and is released.
출처: www.urbanext.uiuc.edu/eggs/res02-definitions.html
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