STRUCTURE OF THE LIVER. 



315 



merged in the areolar investment called Glisson's capsule, 

 Fig 83.* 



Fig- 84. 



which, surrounding the portal vein, hepatic artery, and 

 hepatic duct, as they enter at 

 this part, accompanies them 

 in their branchings through 

 the substance of the liver. 



The liver is made up of 

 small roundish or oval por- 

 tions called lobules, each of 

 which is about ^ of an inch 

 in diameter, and composed of 

 the minutest branches of the portal vein, hepatic artery, 

 hepatic duct, and hepatic vein ; while the interstices of 



* Fig. 83. The liver has been turned over from left to right so as 

 to expose the lower surface. I, left lobe ; 2, 3, 4, 5, right lobe ; 

 6, lobulus quadratus ; 7, pons hepatis ; 8, 9, 10, lobulus Spigelii ; 

 II, lobulus caudatus ; 12, 13, transverse or portal fissure with the. 

 great vessels ; 14, hepatic artery ; 15, vena portae ; 16, anterior part 

 of the longitudinal fissure, containing 17, the round ligament or ob- 

 literated remains of the umbilical vein ; 18, posterior part of the same 

 fissure, containing 19, the obliterated ductus venosus ; 20, 21, 22, 

 gall-bladder; 23, cystic duct; 24, hepatic duct; 25, fossa containing 



