Definition of Portal vein

1. Bad Bugs and Their Bites Slideshow
2. Heartburn: Foods to Eat and Avoid Slideshow
3. Understanding Multiple Sclerosis Slideshow

Portal vein: A large vein formed by the union of the splenic and superior mesenteric veins. The portal vein conveys venous blood to the liver for detoxification before the blood is returned to circulation via the hepatic veins.

Need help identifying pills and medications?
Use the pill finder tool on RxList.