THE LIVER 



ICQ 



each other and gradually increase in size as they merge from all 

 parts of the liver, to leave its substance in two divisions one 

 from the right and one from the left lobe. These two unite to 

 form the hepatic duct which, running a course of about one and 

 a half inches, is joined at an acute angle by the cystic duct to 

 form the common bile duct, or the ductus communis chole- 

 dochus. This last penetrates obliquely the duodenal wall and 



Branch of portal vein. 



Large interlocular 

 bile duct. 



Interlobular con- 

 nective tissue. 



FIG. 46. From a horizontal section of human liver. X4O. 



Three central veins, cut transversely, represent each a center of as many hepatic 

 lobules, that at the periphery are but slightly defined from their neighbors. Below 

 and to the right of the section the lobules are cut obliquely and their boundaries 

 cannot be distinguished. (From Stohr.) 



discharges the bile into the intestine. The cystic duct has its 

 origin at the apex of the gall bladder, and is about one inch long. 

 The common bile duct has an average length of three inches. 

 (See Fig. 43.) 



Gall Bladder. The gall bladder has an oval shape with its 

 large end forward. It is on the under surface of the liver, the 

 ^peritoneum running over (or rather under) it. It has a mucous 



