HANDBOOK OF PHYSIOLOGY. 



called sMft-lobular (h h li, Fig. 208); while these again, by their union, 

 form the main branches of the hepatic veins, which leave the posterior 

 border of the liver to end by two or three principal trunks in the infe- 



Fio. 207. Cross section of a lobule of the human liver, in which the capillary network between 

 the portal and hepatic veins has been fully injected 1, section of the tnfra-lobular vein; 2, its smaller 

 branches collecting blood from the capillary network; 3, iwter-lobular branches of the vena 

 portae with their smaller ramifications passing inwards towards the capillary network in the sub- 

 stance of the lobule, x 60. (Sappey.) 



FIG. 208. Section of a portion of liver passing longitudinally through a considerable hepatic 

 vein, from the pig. H, hepatic venous trunk, against which the sides of the lobules (0 are applied ; 

 h, h, h, sublobular hepatic veins, on which the bases of the lobules rest, and through the coats of 

 which they are seen as polygonal figures ; i, mouth of the intralobular veins, opening into the 

 sublobular veins ; i', intralobular veins shown passing up the centre of some divided lobules ; I, I, 

 cut surface of the liver ; c, c, walls of the hepatic venous canal, formed by the polygonal bases of 

 the lobules. X 5, (Kiernan.) 



