I.] DISSECTION OF A BABBIT AND OP A DOG. 7 



note the fairly large vein from the pancreas 

 and the upper part of the duodenum joining 

 the previously mentioned vein to form the portal 

 vein; note also the branch from the cseliac 

 axis dividing into the hepatic artery and an 

 artery supplying the greater part of the 

 pancreas and the upper part of the duodenum ; 

 it then gives off branches to the lower part of 

 the oesophagus and the stomach and finally 

 divides into two branches, one the hepatic 

 .artery going to the liver, the other going- to 

 the lower part of the stomach and the upper 

 part of the duodenum (with branches to the 

 pancreas). 



14. Turning the liver up towards the diaphragm, the 

 gall-bladder will be seen in a hollow on the 

 under surface of the posterior right lobe : trace 

 the cystic duct or duct from the gall-bladder to 

 the point where it joins the hepatic duct, 

 proceeding from the liver itself; trace the united 

 duct or common bile duct into the duodenum, 

 close to the pylorus. 



15. Ligature the oesophagus and the rectum and cut 

 through both, the former above the ligature the 

 latter below it. Turning the intestine to the 

 right, cut through the mesentery close to its 

 abdominal attachment and remove from the 

 abdomen the alimentary canal and its appen- 

 dages except the liver. Observe now the posi- 

 tion and form of the liver, especially in relation 

 to the diaphragm. 



16. Pull the liver down .from the diaphragm, 



