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 ; t>, branch of portal rein ; d, bile-duct ; 1,1, lymphatics in the 

 areolar tissue of Glisson'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 ; h iutralobular 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- 



