Engelsk navneord: umbilical vesicle | |||
1. | umbilical vesicle (om dyr) membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional | ||
Termer med samme betydning (synonymer) | vesicula umbilicus, vitelline sac, yolk sac | ||
Mindre specifikke termer | sac | ||