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A '''portal triad''' (also known as portal area) is a distinctive arrangement in the [[liver]]. It is a component of the [[hepatic lobule]]. It consists of the following five structures:
A '''portal triad''' (also known as portal area) is a distinctive arrangement in the [[liver]]. It is a component of the [[hepatic lobule]]. It consists of the following five structures:


* [[hepatic artery]]
* [[proper hepatic artery]]
* [[hepatic portal vein]]
* [[hepatic portal vein]]
* [[bile duct]]
* [[bile duct]]

Revision as of 08:32, 16 December 2011

Portal triad
Portal triad
Details
Identifiers
Latintrias hepatica
THH3.04.05.0.00021
FMA17523
Anatomical terminology

A portal triad (also known as portal area) 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 limiting plate.

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