The<unk>  is the arterial counterpart to the<unk>  veins. Like the veins, it plays an important role in the<unk>  circulation of blood to and from the yolk sac. It is a branch of the dorsal aorta.
It gives rise to the celiac artery, superior mesenteric artery, and inferior mesenteric artery.
Vitelline arteries
Vitelline veins
Vertebral artery
Ophthalmic artery
Brachiocephalic vein
Internal carotid artery
Pontine arteries
Kiesselbach's plexus