I.] DISSECTION OF A RABBIT AND OF A DOG. 5 



ning to the hilus of the kidney : note the renal 

 vein running parallel to the renal artery into 

 the vena cava. Follow the superior mesenteric 

 artery a short distance and observe the branches 

 given off to the pancreas, these are more easily 

 seen when the intestines are turned to the left. 



10. Tearing through the mesentery around the 

 lower part of the oesophagus, observe the right 

 and left pneumogastric nerves (cp. C 17, 

 24,) dividing into several fibres which spread 

 out over the stomach. One or more branches 

 may be traced to the solar plexus. Observe 

 the number of pale nerves which are given off 

 by the ganglia of the solar plexus; bundles 

 of them may be followed along the caeliac, 

 mesenteric and renal arteries. 



11. Then turning the stomach and intestines over to 

 the left side, carefully tear away the mesentery 

 over the aorta and note the right splanchnic 

 nerve close beside it, trace the nerve on its course 

 (being careful not to puncture the vena cava) 

 past or underneath the right suprarenal body 

 into a ganglion a little removed from the rest 

 of the solar plexus. 



12. Lift up the stomach, and viewing from the right 

 the mesentery below it, note the portal vein, 

 a large vein dividing close to the posterior 

 surface of the liver and running into it. This 

 vein is formed by the union of the lieno-gastric 

 and mesenteric veins, the former is much the 

 smaller and joins the latter close to the liver ; 



