STRUCTURE OF THE LIVER 



155 



lymphatics) and can also be traced to the lobules, from each of which 

 they receive a minute branch (intralobular vein) which passes from the 

 centre of the lobule, and opens directly into the (sublobular) branch 

 of the hepatic vein. 



FIG. 187. SECTION OF A PORTAL CANAL. 



a, branch of hepatic artery ; r, branch of portal vein ; d, bile-duct ; 1,1, lymphatics in the 

 areolar tissue of Glissou's capsule which encloses the vessels. 



FIG, 188. DIAGRAMMATIC REPRESENTATION OF TWO HEPATIC LOBULES. 



The left-hand lobule is represented with the intralobular vein cut across ; in the right-hand 

 one the section takes the course of the intralobular vein, p, interlobular branches of the 

 portal vein ; fi intralobular branches of the hepatic veins ; s, sublobular vein ; c. capil- 

 laries of the lobules. The arrows indicate the direction of the course of the blood. The 

 liver-cells are only represented in one part of each lobule. 



Each lobule is a mass of hepatic cells pierced everywhere with a 

 network of blood-capillaries (fig. 188), which arise at the periphery of 

 the lobule, there receiving blood from the interlobular branches of the 

 portal vein (p], and converge to the centre of the lobule, where they 

 unite to form the intralobular branch of the hepatic vein. The inter- 



