Tags: Anatomical Structure.
A portal triad (also known as portal field portal area or portal tract) is a distinctive arrangement in the liver. It is a component of the hepatic lobule. It consists of the following five structures: proper hepatic artery hepatic portal vein common bile duct lymphatic vessels branch of the vagus nerveThe misnomer portal triad traditionally has included only the first three structures and was named before lymphatic vessels were discovered in the structure.