346 THE HUMAN BODY. 



pancreas) is thus conveyed to a fine vascular interlobular 

 plexus around the Hver-lobnies, from which it flows on 

 through the capillaries (lobular plexus] of the lobules them- 

 selves. These (Fig. 117) unite in the centre of the lobule to 

 form a small intralobular vein, which carries the blood out 

 and pours it into one of the branches of origin of the hepatic 

 vein, called the sublobular vein. Each of the latter has 

 many lobules emptying blood into it, and if dissected out 

 with them (Fig. 118) would look something like a branch of 

 a tree with apples attached to it by short stalks, represented 



FIG. 118. A small portion of the liver, injected, and magnified about twenty 

 diameters. The blood-vessels are represented white; the large vessel is a sub- 

 lobular vein, receiving the intralobular veins, which in turn are derived from the 

 capillaries of the lobules. 



by the intralobular veins. The blood is finally carried, as 

 already pointed out, by the hepatic veins into the inferior vena 

 cava. The hepatic artery, a direct offshoot of the coeliac 

 axis, ends mainly in Glisson's capsule and the walls of the 

 blood-vessels and bile-ducts, but some of its blood reaches 

 the lobular plexuses; it all finally leaves the liver by the 

 hepatic veins. 



The bile-ducts can be readily traced to, the periphery 

 of the lobules, and there communicate with a network of 

 extremely minute commencing bile ducts, ramifying in the 

 lobule between the hepatic cells composing it. 



The Pancreas or Sweetbread. This is an elongated 

 soft organ of a pinkish yellow color, lying along the great 

 curvature of the stomach. Its right end is the larger, 

 and is embraced by the duodenum (Fig. 119), which there 



