BLOOD SUPPLY OF GI

Esophagus :

Arterial supply : 1) Inferior thyroid 2) Esophageal branch of Aorta 3)Esophageal branch of left gastric.

Venous Drainage :1) Brachiocephalic 2)Azygos 3)Left Gastric

Stomach:

Arterial Supply : 1)Short gastric 2)Right gastroepiploic 3)left gastroepiploic 4)right gastric & left gastric

Venous Drainage: 1)Short gastric - to Splenic vein 2)Left gastropiploic vein -to splenic vein 3)Right gastropiploic vein- to superior mesenteric vein 4)Right and Left gastric vein -to portal vein 5)Prepyloric vein.

Duodenum:

Arterial Supply: 1)Superior and Inferior Pancreaticoduodenal 2)Right Gastric 3)Right gastroepiploic 4)Supraduodenal

Venous Drainage:1)Splenic 2)Superior mesenteric 3)Portal vein

Jeujenum :

Arterial Supply: 1)Jeujenal and Ileal branch of superior mesentric artery

Venous Drainage:1)Jeujenal and Ileal veins -to superior mesenteric vein

Cecum:

Arterial Supply: Cecal branches of Ileocolic
           
Venous Drainage: Superior mesenteric vein

Appendix:

Arterial Supply: Appendicular branch of inferior divison of Ileocolic artery
               
Venous Drainage: 1)Appendicular 2)Ileocolic 3)Superior mesenteric vein

Large Intestine:

Arterial Supply: 1)Ileocolic artery 2)Right colic 3)Middle Colic 4)Ascending branch of left colic 5)Descending branch of left colic 6)Sigmoid arteries

Venous Drainage: 1)Superior mesenteric vein 2)Inferior mesenteric vein

Rectum:

Arterial Supply:1)Superior rectal 2)Middle rectal 3)Median Sacral

Venous Drainage: 1)Superior rectal 2)Middle rectal

Anal Canal:

Arterial Supply:1)Above pectinate line- Superior rectal 2)Below pectinate line -Inferior rectal
               
Venous Drainage:1)Upper part-Superior rectal 2)Middle part-middle rectal 3)Lower part-Inferior rectal

Spleen:

Arterial Supply:Splenic artery
         
Venous Drainage:Splenic vein

Pancreas:

Arterial Supply:1)Pancreatic branch of splenic artery 2)Superior pancreaticoduodenal 3)Inferior pancreaticoduodenal artery

Venous Drainage: 1)Portal 2)Splenic 3)Superior mesenteric vein

Liver:

Arterial Supply:Hepatic artery
       
Venous Drainage:Portal vein


Gallbladder :

Arterial Supply:Cystic artery
                 
Venous Drainage:Cystic vein