rectal vein

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Noun1.rectal vein - any of several veins draining the walls of the anal canal and rectumrectal vein - any of several veins draining the walls of the anal canal and rectum
vein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive
However, distal rectal cancers may metastasize initially to the lungs through the inferior rectal vein, which drains into the inferior vena cava rather than into the portal venous system [3].
Causes of haemorrhoids are hereditary, morphological where the pressure by the blood column is transmitted as superior rectal vein has no valves; other causes are straining, diarrhea, constipation, hard stool, low fiber diet, over purgation, carcinoma rectum, pregnancy and portal hypertension.
The rectal vein plexus is also located in this region and can increase in size in case of hemorrhoids.
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