A multi-organ-part structure that consists of three vessels of the portal lobule including the bile duct, a terminal branch of the hepatic artery and portal vein, and may also include a lymphatic vessel.

Portal:triad.JPG

trias hepatica

uberon

trias hepatica

UBERON:0001279

http://purl.obolibrary.org/obo/cl.owl

The misnomer 'portal triad' traditionally has included only the first three structures, and was named before lymphatic vessels were discovered in the structure. It can refer both to the largest branch of each of these vessels running inside the hepatoduodenal ligament, and to the smaller branches of these vessels inside the liver.

• interlobular bile duct

• interlobular bile duct