Anatomy
Stomach
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. What are the anatomical features of the stomach?
Curvatures:
Lesser- superior- short concave border- attachment for lesser omentum
Greater- inferior- long convex border- attachment for greater omentum
Anatomical sections:
Cardia- surrounds cardinal orifice between oesophagus and stomach- cardial notch: between oesophagus and
Fundus:- dilated superior region- sits under left dome of diaphragm at 5th intercostal space
Body- between fundus and pylorum
Pyloric parta. pyloric antrum (widest)b. pyloric canal (narrow passage)c. pylorus (thickened sphincteric
2. What are the 4 components of the pyloric part of the stomach?
pyloric antrum (widest part adjacent to body)
pyloric canal (narrow passageway)
pylorus (thickened sphincteric region)
pyloric sphincter (controls movement of stomach contents through pyloric orifice to duodenum)
3. What type of cells form the mucosal layer of the stomach?
Simple columnar epithelial mucous cells (foveolar cells)
- produce alkaline mucous to protect the epithelium of the stomach
4. What stimulates mucous secretion by the foveolar cells of the stomach?
Prostaglandins (PGE2)
5. What forms the muscularis layer of the stomach?
Longitudinal (deep)
Circular (intermediate)
Additional oblique (superficial)
6. What is the function of the oblique muscle layer of the stomach?
Specialised functions to assist the mechanical digestion of food including grinding, churning, mixing
7. What are the layers of the stomach wall?
Mucosal layer (deep)
- simple columnar epithelial mucousal cells (fovealar cells)
Submucosa
Muscularis
longitudinal
circular
additional oblique mm
Serosa (intraperitoneal organ)
8. What are some of the features of the mucosal lining of the stomach?
Anatomy 2024/25 Edition
Stomach
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. What are the anatomical features of the stomach?
Curvatures:
Lesser- superior- short concave border- attachment for lesser omentum
Greater- inferior- long convex border- attachment for greater omentum
Anatomical sections:
Cardia- surrounds cardinal orifice between oesophagus and stomach- cardial notch: between oesophagus and
Fundus:- dilated superior region- sits under left dome of diaphragm at 5th intercostal space
Body- between fundus and pylorum
Pyloric parta. pyloric antrum (widest)b. pyloric canal (narrow passage)c. pylorus (thickened sphincteric
2. What are the 4 components of the pyloric part of the stomach?
pyloric antrum (widest part adjacent to body)
pyloric canal (narrow passageway)
pylorus (thickened sphincteric region)
pyloric sphincter (controls movement of stomach contents through pyloric orifice to duodenum)
3. What type of cells form the mucosal layer of the stomach?
Simple columnar epithelial mucous cells (foveolar cells)
- produce alkaline mucous to protect the epithelium of the stomach
4. What stimulates mucous secretion by the foveolar cells of the stomach?
Prostaglandins (PGE2)
5. What forms the muscularis layer of the stomach?
Longitudinal (deep)
Circular (intermediate)
Additional oblique (superficial)
6. What is the function of the oblique muscle layer of the stomach?
Specialised functions to assist the mechanical digestion of food including grinding, churning, mixing
7. What are the layers of the stomach wall?
Mucosal layer (deep)
- simple columnar epithelial mucousal cells (fovealar cells)
Submucosa
Muscularis
longitudinal
circular
additional oblique mm
Serosa (intraperitoneal organ)
8. What are some of the features of the mucosal lining of the stomach?
Anatomy 2024/25 Edition
