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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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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. |
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