Portal Triad Anatomy

See portal triad for discussion of misnomer mouseover for labeled slide references. The term however can be considered a misnomer since it contains other structures as well.

The Liver Lobes Ligaments Vasculature Teachmeanatomy

Inflammation is confined to the portal trials hirschfield 2011.

Portal triad anatomy. The hepatic artery the hepatic portal vein and the hepatic ducts or bile ducts. Interlobular bile ducts drain into larger ones as septal or trabecular ducts. A portal triad is an arrangement in the liver which consists of a hepatic artery a portal vein and a bile duct.

Each portal triad consists of connective tissue in which are embedded a branch of the portal vein arterioles and interlobular bile ducts in addition to lymphatics and nerves. Portal triads may contain a small number of lymphocytes. 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.

The portal triad is an area at the liver named after its triangular shape and its three major components. Injured bile ducts surrounded by a dense infiltrate of mononuclear cells most of which are lymphocytes these florid asymmetric destructive lesions of interlobular bile ducts are irregularly scattered throughout the portal triads and often seen only on large surgical biopsies of the liver in which adequate representation of small bile ducts occurs. The bile duct carries bile products away from the hepatocytes to the larger ducts and gall bladder.

Portal triad portal triads are composed of three major tubes. Branches of the hepatic artery carry oxygenated blood to the hepatocytes while branches of the portal vein carry blood with nutrients from the small intestine. The misnomer portal triad traditionally has included only the first three structures and was named before lymphatic vessels were discovered in the structure.

A Exploded View Of The Liver Demonstrating The Distribution