Stomach: Parts And Surfaces

Question 1

Parts

Answer 1

1. Fundus
2. Body
3. Pyloric part

Question 2

Fundus

Answer 2

1. Found above horizontal artificial line running to left from cardiac end to greater curvature
2. Usually empty of food in erect position and contains gastric air

Question 3

Body

Answer 3

Found above mentioned horizontal line and perpendicular line drawn from incisura angularis to greater curvature

Question 4

Pyloric part

Answer 4

Found right of body and subdivided into 3 regions:
1. Pyloric antrum
2. Pyloric canal
3. Pyloric sphincter

Question 5

Pyloric antrum

Answer 5

Dilatation just to right of body

Question 6

Pyloric canal

Answer 6

Narrow part to right of antrum 2-3 cm long

Question 7

Pyloric sphincter

Answer 7

Narrow thickened end right of pyloric canal

Question 8

Pyloric sphincter can be identified during operation by:

Answer 8

1. Thickening of its muscle wall
2. Presence of prepyloric vein of mayo crossing over connecting right gastroepiploic vein on greater curvature to right gastric vein on lesser curvature

Question 9

Surfaces (relations)

Answer 9

Anterior and posterior (stomach bed)

Question 10

Anterior relations

Answer 10

1. Liver inferior surface (left lobe and quadrants lobe): related to area adjoining lesser curvature
2. Diaphragm:
   Related to stomach upper left part
3. Anterior abdominal wall:
   Related to stomach lower part
   All above structures are separated from stomach by peritoneum greater sac

Question 11

Posterior relations

Answer 11

4 organs and 4 related structures
1. Anterior surface of pancreas body and splenic artery above it
2. Left kidney anterior surface and left Suprarenal gland above it
3. Spleen visceral surface and diaphragm left crus above it
4. Transverse colon and tranverse mesocolon above it
All above mentioned structures are separated from stomach by peritoneum lesser sac except spleen which is separated by it by greater sac