Development of the Venous System

Development of the Venous System The venous system develops from the vitelline, umbilical, and cardinal veins, which drain into the sinusvenosus. Vitelline veins Return poorly oxygenated blood from the yolk sac. Right vein forms the hepatic veins and sinusoids, ductus venosus, hepatic portal, superior mesenteric, inferior mesenteric, and splenic veins and part of the IVC. Left vein forms the hepatic veins and sinusoids and ductus venosus. Umbilical veins Carry well-oxygenated blood from the placenta. Right vein degenerates during early development. Left vein forms the ligamentum teres hepatis. Cardinal veins Return poorly oxygenated blood from the body of the embryo. Anterior cardinal vein forms the internal jugular veins and SVC. Posterior cardinal vein forms a part of the IVC and common iliac veins. Subcardinal vein forms a part of the IVC, renal veins, and gonadal veins. Supracardinal vein forms a part of the IVC, intercostal, azygos, and hemiazygos veins. ◄.....Go back to the Gross Anatomy homepage