Stomach Flashcards
Stomach is derived from the
Foregut
Most superior portion of the stomach
Fundus
Separates fundus from the esophagus
Angle of his
Strongest layer of the gastric wall
Submucosa
Submucosal plexus
Meissner’s
Myenteric plexus
Auerbach’s plexus
Smooth muscle sublayer that is unique to the stomach
Inner oblique layer
Cells that produce pepsinogen
Chief cells
Secretes HCl and IF
Parietal cells
Secrete mucous and HCO3
Mucous neck cell
Secreted by Kulchitsky cells
Serotonin
Enterochromaffin cells
Supplies the proximal portion of the lesser curvature and gives off small branches to the diaphragm and distal esophagus.
Left gastric artery
Supplies the distal portion of the lesser curvature.
Right gastric artery:
Supplies the proximal portion of the greater curvature
Left gastroepiploic artery
Supplies the distal greater curvature and pylorus.
Right gastroepiploic artery
■ : Originate from the splenic artery. Contribute to theblood supply of the proximal stomach.
Short gastric arteries
Drainage of right and left gastric veins
Portal vein
Drainage of right gastriepiploic vein
Splenic vein
Drainage of left gastroepiploic vein
SMV
Also calles as coronary vein
Left gastric vein
Left vagus runs anterior or posterior to the stomach?
Anterior
Right -posterior
Criminal nerve of grassi is a branch of
Right vagus nerve
If this nerve is undivided during vagotomy, recurrents ulcers will occur
Criminal nerve of grassi
Exacerbated by food intake: gastric vs duodenal ulcer
Gastric
Relieved by food intake: gastric vs duodenal ulcer
Duodenal
Type I gastric ulcer is associated with what blood type
Type A
Type II gastric ulcer is associated with what blood type
Type O
The most cost-effective diagnostic test for PUD
UGI contrast study
But UGI endoscopy will allow obtaining biopsy
Most common location of perforation in PUD
Posterior