The Main Function of the Portal Vein. Like any organ, the liver requires a constant flow of blood to maintain life. The liver has a dual blood supply derived from the portal vein and the hepatic ...

If part of your stomach pushes through and stays in your chest next to your esophagus, it’s called a paraesophageal hernia. This less common type of hernia can cut off your stomach’s blood supply.

The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...