( HAT. XIII 



THE I.IVI.K AND SI'I 1 I \ 



branch and divide, keeping one another company, being loosely 

 bound together by a little connective tissue. The liver tissue 

 itsdf is composed of cubical or many-sided cells, the hepatic 

 cells closely packed together. The hepatic cells, each of 

 which is about , l f , th of an inch in diameter, are grouped 

 into small many-sided masses, nearly | ' l) th of an inch across, 

 railed lobules. On the surface of the liver of the pig, five- 

 or six-sided areas marking out those lobules which are on 



Fer,. 69. Section of a piece of liver showing a branch of the hepatic vein cut open. 

 //. / ", hcpaiii- vein branches ; L, areas showing the lobules of the liver. 



the surface can be seen with the naked eye. The lobules are 

 separated from one another by a little connective tissue, which 

 is continuous with the connective tissue round the branches 

 of the portal vein and hepatic artery. The branches of these 

 vessels can be traced in this connective tissue between the 

 lobules to the bordei-; of e.i h lobule, and there they break up 

 into capillaries, which stream towards the centre of the lobule. 

 The capillaries of the hepatic artery join with those of the 



