Terminology Service for NFDI4Health
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duodenum

Go to external page http://purl.obolibrary.org/obo/UBERON_0002114

The first part of the small intestine. At the junction of the stomach and the duodenum the alimentary canal is inflected. The duodenum first goes anteriorly for a short distance, turns dorsally, and eventually caudally, thus it is a U-shaped structure with two horizontal sections (a ventral and a dorsal one). [ https://www.worldcat.org/search?q=bn%3A0815318960 http://en.wikipedia.org/wiki/Duodenum ]

Term info

Label

duodenum

database cross reference
Subsets

uberon_slim, efo_slim, pheno_slim, vertebrate_core

depicted by

http://upload.wikimedia.org/wikipedia/commons/b/b3/Tractus_intestinalis_duodenum.svg

external definition

The fixed portion of the small intestine deeply lodged in the posterior wall of the abdomen and extending from the pylorus to the beginning of the jejunum. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG]

has related synonym

upper intestine, proximal intestine

id

UBERON:0002114

taxon notes

In humans, the duodenum is a hollow jointed tube about 10-15 inches (25-38 centimetres) long connecting the stomach to the jejunum. It begins with the duodenal bulb and ends at the ligament of Treitz., In fish, the divisions of the small intestine are not as clear, and the terms anterior intestine or proximal intestine may be used instead of duodenum.