DIGESTIVE ORGANS 



69 



of the end of the duct {Dc^) into the intestine ; this fluid is 

 the bile. 



Very careful dissection shows that the common bile-duct 



Fig. 18. — Stomach and duodenum of Frog with liver and pancreas. 

 Dc^ Dc^ common bile duct ; Dc.'^ its opening into the duodenum ; D. cy. cystic 

 ducts ; Dk, Dh^ hepatic ducts ; Du. duodenum ; G. gall-bladder \ L,L\ L'^,L^, 

 lobes of liver, turned forwards ; Lhp. duodeno-hepatic omentum, a sheet of 

 peritoneum connecting the liver with the duodenum ; M. stomach ; P. pancreas ; 

 P^, pancreatic duct ; Py. pylorus. (From Wiedersheim's Comparative 

 Anatoniy.) 



is joined by several other tubes which are traceable into the 

 liver and are called hepatic ducts {Dh, DhS). The tubes 

 going to the gall-bladder are called cystic ducts {D.cy) ; by 



