1. STOMACH
iMedscholar.com

2. iMedscholar.com Stomach
a muscular bag forming widest and most distensible part of digestive tube.
occupies Left Hypochondriac, Epigastric and Umbilical region.
shape : somewhat J in normal active person
J shaped in tall thin person
Horizontal in broad, strong, very active person
iMedscholar.com

3. iMedscholar.com External Features modify rule of 2 Orifices Curvatures
Surfaces
Parts

4. iMedscholar.com lower end of oesophagus vertebra T11 duodenum
Cardiac Orifice
Pyloric Orifice
lower end of oesophagus
vertebra T11
duodenum
vertebra L1
iMedscholar.com

5. iMedscholar.com concave forms right border of stomach
Lesser Curvature
Greater Curvature
concave
forms right border of stomach
attachment to lesser omentum
most dependant part is incisura angularis/angular notch
convex
forms left border of stomach
attachment to greater omentum
cardiac notch at upper end
iMedscholar.com

6. iMedscholar.com faces forwards and upwards
Ant. Surface
Post. Surface
faces forwards and upwards
faces backwards and downwards
iMedscholar.com

7. line drawn downward to left from cardiac end to angular notch and further extended to greater curvature.
Cardiac Part
Pyloric Part
sub divided into fundus and and body
fundus - upper convex dome shaped part distended w/ gas.
body - lies b/w fundus and pyloric antrum.
mucous, peptic, oxyntic cells.
sub divided into pyloric antrum and canal.
separated from canal by sulcus intermedius.
canal terminates at the pylorus.
iMedscholar.com

8. iMedscholar.com Lesser Curvature by left and right gastric arteries
Arterial supply
Venous drainage
Lesser Curvature by left and right gastric arteries
Greater Curvature by left and right gastroepiploic artery
Fundus by short gastric arteries
Right and Left gastric veins into Portal Vein
Left gastroepiploic and Short Gastric veins into Splenic vein
Right gastroepiploic vein into Superior Mesentric Vein
iMedscholar.com

9. iMedscholar.com Lymphatic Drainage (a) : Pancreaticosplenic nodes
(b) : Left Gastric Nodes
(c) : Right Gastroepiploic Nodes
(d) : Sub-Pyloric Nodes, Hepatic Nodes, Coeliac Nodes
iMedscholar.com
*all nodes finally drain into Coeliac Nodes
*learn the names and try to understand the next diagram

10. iMedscholar.com

12. iMedscholar.com P E P T I C ulcer i.e Pepsin & Acid Ulcer
i.e Pepsin & Acid producing regions of GIT which includes Lower End of Oesophagus, Stomach, First part of Duodenum, Meckel's Diverticulum.
common in Blood Group O
iMedscholar.com