THE CIRCULATORY SYSTEM 



165 



already circulated through the capillaries of the stomach, 

 spleen, intestines, and pancreas (Fig. 95). Unlike any 

 other vein, the portal vein ends in a second set of capil- 



Gall Bladder- 



Inferior 

 Vesenteric Vein 



Inferior 

 "Mesenteric Artery 



-Descending Colon 



-Small Intestine 



Fig. 95. The portal vein and its chief branches. 



The liver is turned back and the transverse colon and a part of the small 

 intestine are cut away. 



laries around the cells of the liver, from which it is col- 

 lected into the hepatic veins, which open into the inferior 

 vena cava. 



