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yolk sac - traducción al español
MEMBRANOUS SAC ATTACHED TO AN EMBRYO, FORMED BY CELLS OF THE HYPOBLAST ADJACENT TO THE EMBRYONIC DISK
Yolk-sac; Yolk sac cavity; Primitive yolk sac; Exocoelomic cavity; Vesicula umbilicalis; Saccus vitellinus; Umbilical vesicle; Yolk sacs; Umbilical vesicles
![Artificially colored, showing [[gestational sac]], yolk sac and [[embryo]] (measuring 3 mm as the distance between the + signs).](https://commons.wikimedia.org/wiki/Special:FilePath/Ultrasound of embryo at 5 weeks, colored.png?width=200 "Artificially colored, showing [[gestational sac]], yolk sac and [[embryo]] (measuring 3 mm as the distance between the + signs).")
![gestational age]] by [[obstetric ultrasonography]].](https://commons.wikimedia.org/wiki/Special:FilePath/Ultrasound of embryo at 5 weeks.png?width=200 "gestational age]] by [[obstetric ultrasonography]].")
![Surface view of embryo of [[Hylobates concolor]] (a gibbon).](https://commons.wikimedia.org/wiki/Special:FilePath/Gray14.png?width=200 "Surface view of embryo of [[Hylobates concolor]] (a gibbon).")
yolk sac
saco del vitelo o yema, fina membrana que rodea a la yema de un huevo y provee nutrientes al embrión (en los mamíferos, el saco del vitelo o yema cesa su función al formarse la placenta)
sac
WIKIMEDIA DISAMBIGUATION PAGE
Sac; SAC (disambiguation); Sac (disambiguation)
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* cul-de-sac = callejón sin salida
* cul-de-sac = callejón sin salida
sac
WIKIMEDIA DISAMBIGUATION PAGE
Sac; SAC (disambiguation); Sac (disambiguation)
saco
cavidad
cavidad
Definición
yolk sac
¦ noun Zoology a membranous sac containing yolk attached to the embryos of reptiles and birds and the larvae of some fishes.
Wikipedia
Yolk sac
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 (TE), though yolk sac is far more widely used. In humans, the yolk sac is important in early embryonic blood supply, and much of it is incorporated into the primordial gut during the fourth week of embryonic development.
Ejemplos de uso de yolk sac
1. The babies then hide under stones where they eat their yolk–sac.
2. The caviar–based creams are produced by extracting vitelline – or yolk sac – from the sturgeon eggs.