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Gastrointestinal tract

Synonyms: GI tract, gastrointestinal canal
Abbreviations: GIT, GIC
German: Gastrointestinaltrakt

1 Definition

The gastrointestinal tract is defined as the main part of the digestive system that extends from the oesophagus to the anus. It consists of the following organs:

Note: some authors distinguish between the gastrointestinal tract and the "digestive system", which then also includes the so-called "intestine head", particularly the oral cavity, salivary glands and pharynx.

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2 Classification

  • Upper gastrointestinal tract: Includes the oesophagus, the stomach and the duodenum.
  • Lower gastrointestinal tract: Includes the jejunum, ileum, cecum, colon, sigmoid colon and rectum.

3 Histology

The gastrointestinal tract is, along its entire course, a typical structure of different layers of tissue, which form the intestinal wall. This structure differs slightly between the foregut and the intestine hull.

This page was last edited on 11 July 2016, at 10:42.

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