Gastrointestinal Tract - Stomach Development: Difference between revisions
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******** gastro-splenic ligament | ******** gastro-splenic ligament | ||
******** '''duodenum '''(rostral half) | ******** '''duodenum '''(rostral half) | ||
* foregut-midgut junction | |||
* midgut region | |||
* hindgut diverticulum (pocket) | |||
==References== | ==References== |
Revision as of 08:26, 22 August 2010
Introduction
This section of notes gives an overview of how the stomach and duodenum develops. The GIT is best imagined as a simple tube, the upper part being the foregut diverticulum, which is further divided into oesophagus and stomach.
During week 4 at the level where the stomach will form the tube begins to dilate, forming an enlarged lumen. The dorsal border grows more rapidly than ventral, which establishes the greater curvature of the stomach. A second rotation (of 90 degrees) occurs on the longitudinal axis establishing the adult orientation of the stomach.
Some Recent Findings
Components of Stomach Formation
primitive endoderm
- foregut diverticulum (pocket)
- pharyngeal region of foregut
- laryngo-tracheal groove (see respiratory tract)
- oesophageal region of foregut
- oesophagus
- stomach
- glandular/proventricular/pyloric stenosis
- fundus/pyloric antrum
- pyloric sphincter
- fundus/pyloric antrum
- dorsal mesogastrium
- lieno-renal ligament
- splenic primordium
- spleen
- gastro-splenic ligament
- duodenum (rostral half)
- splenic primordium
- lieno-renal ligament
- glandular/proventricular/pyloric stenosis
- stomach
- oesophagus
- pharyngeal region of foregut
- foregut-midgut junction
- midgut region
- hindgut diverticulum (pocket)
References
Search Pubmed
Search Bookshelf: Stomach Development
Search Pubmed Now: Stomach Development
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Glossary Links
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Cite this page: Hill, M.A. (2024, April 18) Embryology Gastrointestinal Tract - Stomach Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Gastrointestinal_Tract_-_Stomach_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G