the yolk sac

الإنجليزية - التركية

الإنجليزية - الإنجليزية

تعريف the yolk sac في الإنجليزية الإنجليزية القاموس.: exocoelomic cavity
yolk sac: A membranous sac attached to an embryo, providing early nourishment in the form of yolk in bony fishes, sharks, reptiles, birds, and primitive mammals
yolk sac: membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional
yolk sac: membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes; circulates nutrients to the developing embryo membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional
yolk sac: thin membrane which surrounds the yolk of an egg and supplies nutrients to the embryo (in mammals, the yolk sac ceases to function when the placenta forms)
yolk sac: A membranous sac attached to an embryo, providing early nourishment in the form of yolk in bony fishes, sharks, reptiles, birds, and primitive mammals and functioning as the circulatory system of the human embryo before internal circulation begins
yolk sac: membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes; circulates nutrients to the developing embryo

the yolk sac

الواصلة

the yolk Sac

dhi yōk säk

/ᴛʜē ˈyōk ˈsak/ /ðiː ˈjoʊk ˈsæk/

السابق

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