vitelline vein


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vitelline vein

[vī′tel‚ēn ′vān]
(embryology)
Any of the embryonic veins in vertebrates uniting the yolk sac and the sinus venosus; their proximal fused ends form the portal vein. Also known as omphalomesenteric vein.
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References in periodicals archive ?
The proximal right vitelline vein gives rise to the hepatic sinusoids that derives the hepatic segment.
The superior and the inferior anastomosis atrophy, followed by the proximal part of the left and the distal parts of the right vitelline vein.
The portal vein forms from the most cranial portion of the right vitelline vein, the middle anastomosis, and the caudad portion of the left vitelline vein following regression of the remaining portions of the venous plexus.