i88 



Physiology. 



Thus the liver gets blood from two sources, the portal vein 

 and the hepatic artery, but is drained by one vein, the 

 hepatic vein. 



Work of the Liver. We have seen that the liver makes 

 bile. The liver also makes another substance out of the 

 blood that passes through it. This is glycogen, or "animal 

 starch." It is also called " liver sugar," as it gives to liver 



Mesenteric 

 Lymph Veins < 

 (Fats) 



Fig. 83. Plan of Absorption. 



a sweetish taste. Glycogen is given back to the blood and 

 carried away by the hepatic vein to the body, where it 

 serves as food to the tissues. 



Routes of Different Foods after Absorption. There are, 

 then, two routes taken by the food after absorption. The 

 peptones and sugars go to the liver through the portal 



