410 



THE DIGESTIVE SYSTEM 



cither completely invests each lobule, as in the pig's liver, or forms only 

 a very incomplete investment, as in the liver of man. 



Blood enters the lobule from the vessels of the portal canals and 

 finds its way, through converging capillaries, from the periphery to the 

 center of the lobule. Here it enters the intralobular or central vein, 



FIG. 383. A LOBULE OF THE PIG'S LIVER IN LONGITUDINAL SECTION, SHOWING 

 THE RELATION OF THE CENTRAL AND SUBLOBULAR VEINS AND THE ARRANGEMENT 

 OF THE HEPATIC CELLS. 

 a, sublobular vein; 6, capsule of Glisson. Hematein and eosin. Photo. X 66. 



which occupies the axis of the lobule and conveys the blood thence to the 

 sublobular veins, which again lie in the interlobular connective tissue of 

 Glisson's capsule. 



The hepatic cells occupy the meshes of the intralobular capillaries 

 (sinusoids) and are arranged in cords which radiate from the central 

 vein toward the periphery. The frequent anastomoses of the capillaries 



