vitelline vein การใช้

It receives blood from the vitelline vein, umbilical vein and common cardinal vein.
The human venous system develops mainly from the vitelline veins, the umbilical veins and the cardinal veins, all of which empty into the sinus venosus.
Blood is conveyed to the wall of the yolk sac by the primitive aorta, and after circulating through a wide-meshed capillary plexus, is returned by the vitelline veins to the tubular heart of the embryo.
Blood is conveyed to the wall of the sac by the vitelline arteries ( a branch of the dorsal aorta ), and after circulating through a wide-meshed capillary plexus, is returned by the vitelline veins to the tubular heart of the embryo.