Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Portal veins
Introduction
Portal vein can refer to:
- the hepatic portal vein, a large vein that carries blood from the digestive tract to the liver and is formed by the splenic vein and superior mesenteric vein
- a vein that is part of a portal venous system and connects two systems of capillary beds
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