systemic vein


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Related to systemic vein: pulmonary vein, systemic heart

systemic vein

one of a number of veins that drain deoxygenated blood from most of the body, as opposed to the pulmonary circulation. Systemic veins arise in tiny plexuses that receive blood from capillaries and converge into trunks that increase in size as they pass toward the heart. They are larger and more numerous than the arteries, have thinner walls, and collapse when they are empty. Groups of systemic veins include the coronary veins, the superior vena cava and its tributaries in the upper body, and the inferior vena cava and its tributaries in the lower body.

systemic vein

A vein that is carrying deoxygenated blood (thus, it is not a pulmonary vein) and that empties into a vein and not into a capillary (thus, it is not a portal vein).
See also: vein
References in periodicals archive ?
1) Intrahepatic shunts are less common and occur between intrahepatic portal veins and systemic veins.
1,2 But, as expected, this should lead to decrease in the hepatic blood flow as considerable quantity of portal blood is going towards other systemic veins via portosystemic anastomosis instead of hepatic veins.
Right ventricular systolic dysfunction causes venous blood to back up in the systemic veins causing pedal edema.

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