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Portal triad

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Title: Portal triad  
Author: World Heritage Encyclopedia
Language: English
Subject: Lobules of liver, Periportal space, Interlobular bile ducts, Right lobe of liver, Liver
Collection: Liver Anatomy
Publisher: World Heritage Encyclopedia

Portal triad

Portal triad
Portal triad
Latin trias hepatica
Anatomical terminology

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:

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.

In the smaller portal triads, the four vessels lie in a network of connective tissue and are surrounded on all sides by hepatocytes. The ring of hepatocytes abutting the connective tissue of the triad is called the periportal limiting plate.

External links

  • Histology image: 15203loa – Histology Learning System at Boston University - "Liver, Gall Bladder, and Pancreas: liver; portal triad"

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