228 



E. A. BAUMGARTNER 



are usually one or two lesser indefinite furrows dividing the right 

 lobe into two or three parts. The gall-bladder is embedded in 

 the caudal end of the right lobe some distance from its ven- 

 tral surface. Only a small part of its rounded fundus appears 

 beyond the hepatic tissue. From the notch in the liver caused 

 by the gall-bladder the one or two lesser furrows of the right 

 lobe extend forward. The gall-bladder is a pear-shaped t sac 

 with its larger end extending laterally and somewhat pos- 



Fig. 13 A dissection of an Amblystoma 12 cm. long. X 1. The ventral 

 abdominal wall has been cut away and the gall bladder and main hepatic ducts 

 dissected out. D, duodenum; D.choL, ductus choledochus; D.cy., cystic duct; 

 D.h.d., right hepatic duct; D.h.s., left hepatic duct; L.L., left lobe liver; /B.L., 

 right lobe liver; St., stomach. 



teriorly. The smaller, medial and ventral end projects for- 

 ward and connects with the short cystic duct. Only the large 

 blind end of the gall-bladder receives a peritoneal covering, 

 the remainder is embedded in hepatic tissue. 



There are two main hepatic ducts. These unite to form a 

 common bile-duct of variable length which may be joined by the 

 pancreatic duct just before opening into the gut (fig. 14). Quite 

 often, however, the pancreatic duct opened into the gut immedia- 

 ately beside the ostium of the common bile-duct. The ductus 



