Portal Vein Function, Location, and Anatomy
Portal vein blood contains nutrients and toxins extracted from digested contents, which the liver filters and processes. Toxins are discarded as waste, while nutrients are broken down for use in the body. The liver has a dual blood supply derived from the portal vein and thehepatic artery. Jan-Otto / Getty Images The liver helps metabolize carbohydrates, proteins, and fats in the body. Smaller veins from the stomach and pancreas also contribute to portal vein blood flow....