STRUCTURE OF THE LIVER 



183 



whole being termed a portal canal (fig. 213). The smallest branches 

 of the vessels penetrate to the intervals between the hepatic lobules, 

 and are known as the interlobular branches. The blood leaves the 

 liver at the back of the organ by the hepatic veins : the branches of 

 these run through the gland unaccompanied by other vessels (except 



FIG. 215. HEPATIC-CELLS STILL CONTAINING GLYCOGEN, a, AND WITH THEIR 

 GLYCOGEN DISSOLVED OUT, 6, c. (Heidenhain.) 



In c there was less glycogen present than in b. 



FIG. 216. SECTION OF BABBIT'S LIVER WITH THE INTERCELLULAR NETWORK OF BILE- 

 CANALICULI INJECTED. (Highly magnified. ) (Hering.) 



Two or three layers of cells are represented ; b, b, blood-capillaries. 



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. 



