DIGESTIVE SYSTEM 317 



convex and fits against the diaphragm, to which it is 

 attached by a median vertical fold of peritoneum, 

 the suspensory ligament : its posterior surface is 

 concave, and lies against the stomach. 



a. The lobes of the liver. 



i. The left central lobe lies against the left half of 

 the diaphragm. 



ii. The left lateral lobe lies between the left cen- 

 tral lobe and the stomach, to the cardiac end 

 of which it is applied. It is the largest of the 

 lobes, and is partially subdivided. 



iii. The Spigelian lobe fits into the concave anterior 

 border of the stomach, and is much the smallest 

 of the lobes. 



iv. The right central lobe lies against the right 

 half of the diaphragm, and is grooved on its 

 posterior surface for the gall-bladder. 



V. The caudate lobe lies along the right side and 

 dorsal surface of the pyloric end of the 

 stomach. Its posterior margin is hollowed 

 to fit the right kidney : its inner and anterior 

 border is connected by a bridge of liver-tissue 

 with the Spigelian lobe. 



b. The gall-bladder is an elongated thin-walled sac, 



rather less than an inch in length, of a dark 

 green or brown colour, and lying in the groove 

 in the posterior surface of the right central lobe 

 of the liver. 



c. The bile-duct is a narrow tube, about two inches 



long, running backwards from the smaller and 

 dorsal end of the gaU-bladder to open iato the 

 dorsal surface of the duodenum, about a third of 

 an inch beyond the pylorus. It receives duets 

 from the several lobes of the liver, and lies in the 

 mesentery immediately to the right of the .large 

 portal vein. 



