ELEMENTARY PHYSIOLOGY. [l. 



follow for a short distance the course of the 

 mesenteric vein, noting the small numerous 

 branches received by it from the pancreas. 

 Viewing the mesentery from the left side note 

 the juncture of the splenic and gastric veins to 

 form the lieno-gastric. 



13. Trace out the branches of the cseliac artery; it 

 first gives off the splenic artery which besides 

 giving off a row of smaller arteries to the spleen 

 sends several branches to the greater curvature 

 of the stomach and some small branches to the 

 pancreas, it then gives off at short intervals 

 branches to the lower part of the oesophagus, 

 the stomach and the upper part of the duode- 

 num and a branch, the hepatic artery, which 

 runs to the liver. 



In the dog, pull the spleen downwards and to the 

 left away from the stomach, a branch of the 

 lieno-gastric artery will be seen sending branches 

 to the spleen and to the greater curvature of 

 the stomach; the corresponding veins are best 

 seen on turning the spleen over towards the 

 stomach. Double ligature and cut through 

 these vessels, pull the spleen downwards as 

 before, a smaller branch of the lieno-gastric 

 artery and vein will be seen; centrally of the 

 lieno-gastric vessels will be seen two or more 

 gastric and pancreatic arteries and veins. Pull 

 the pancreas to the left over the spleen and 

 note the junction of the lieno-gastric and me- 

 senteric veins. Then pull the duodenum over 

 the part of the pancreas previously showing and 



