LIVER 



285 



The bile, secreted by the hepatic cells, probably through granule for- 

 mation, frequently contains granules and fat droplets such as are found 

 within the cells. It is eliminated through the bile capillaries. 



The bile capillaries are minute tubes with continuous cuticular walls, 

 presumably formed by the local modification of the cell membranes of 

 two adjacent hepatic cells. The completed capillary, however, shows no 



True meshes. 



Lateral branches of bile capillaries. 



Nuclei of 



hepatic 



cells. 



Sinusoids. 



Portion of a central vein. 



Golgi 



FIG. 280. FROM A CROSS SECTION OF A HUMAN HEPATIC LOBULE. X 300. 



preparation. The boundaries of the hepatic cells could not be seen. The black dots are precipi- 

 tates of the silver. 



indication of being formed of lateral halves which have fused. Cross 

 sections of the large bile capillaries in the liver of Necturus are shown in 

 Fig. 281, and their arrangement in the human liver is indicated in Fig. 280. 

 They extend through the axis of the two-rowed trabeculae of cells, giving 

 off short intercellular branches at right angles. Thus the bile capillaries 

 shown in Fig. 281 between the two sinusoids, may be separate axial 



