2l6 NORMAL HISTOLOGY AND ORGANOGRAPHY. 



been observed in diabetes, but whether a cause 01 

 consequence is not known. 



LIVER. 



The liver is a large compound tubular gland whose 

 terminal ducts anastomose. In this respect it differs 

 from any other gland in the body. It develops as a 

 ventral evagination of the intestinal wall and in 

 close proximity to the origin of the pancreas, so that 

 in the adult the ducts of these two organs have a 



Non-peritoneal 



Tuber omen- 



tale. ^isis 



Impressio celica. 



Impressio pylorica. 

 Fig. 162. Posterior and inferior surfaces of the liver (Nancrede). 



common opening at the apex of a papilla, as already 

 mentioned in the description of the pancreas. If an 

 obstruction occurs at this opening, it is possible for 

 the pent-up bile to invade the pancreas. The ven- 

 tral liver diverticulum quickly bifurcates to form 

 respectively the right and left lobes of the liver. 

 By repeated divisions the bile system of the organ is 

 built up, forming an elaborate anastomosis of the 

 finer bile capillaries. It follows, therefore, that the 

 liver cells are genetically related to the pancreatic 



