Gastrointestinal Tract - Stomach Development: Difference between revisions
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{{Template:Gastrointestinal Tract Links}} | {{Template:Gastrointestinal Tract Links}} | ||
==Some Recent Findings== | |||
== Components of Stomach Formation == | |||
{| class="prettytable" | |||
| '''primitive endoderm''' | |||
{| class="prettytable" | |||
| * 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 | |||
****** dorsal mesogastrium | |||
******* lieno-renal ligament | |||
******** splenic primordium | |||
********* '''spleen''' | |||
******** gastro-splenic ligament | |||
******** '''duodenum '''(rostral half) | |||
==References== | ==References== | ||
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'''Search Bookshelf:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=Books&cmd=search&term=Stomach%20Development Stomach Development] | '''Search Bookshelf:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=Books&cmd=search&term=Stomach%20Development Stomach Development] | ||
'''Search Pubmed Now:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=Stomach%20Development Stomach Development] | '''Search Pubmed Now:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=Stomach%20Development Stomach Development] | ||
==Images== | ==Images== |
Revision as of 08:23, 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
|