212 MAMMALIA (tHE RABBIT) 



(d) Location? 



(e) Use? 



(f) Gall-bladder. 



(1) Identify it and trace its duct to the intestine. 



(2) What is the function of the bile? 



(6) The Omentum. Behind the liver is a broad fold of 



transparent membrane, the omentum. It is sus- 

 pended from the posterior border of the stomach and 

 contains fat. 



(a) What is the use of the omentum? 



(b) What lies behind it? 



(7) The Small Intestine. 



(a) The Duodenum. Joined to the pyloric or posterior 



end of the stomach is the duodenum. 



(1) The Pancreas is in the loop of the duodenum. De- 



scribe it. Its use? Trace the duct or ducts. 

 Into what do they lead? 



(2) The Mesentery holds the folds of the intestines in 



place. Describe it, noting any blood-vessels. 

 To what is it attached? Of what is it a fold or 

 continuation? 



(3) The Spleen is a small red organ in the mesentery, 



near the cardiac or anterior end of the stomach. 

 Identify it. What is its use? 



(b) The Ileum. From the duodenum to the entrance 



of the cecum is the ileum. Cut the mesentery and 

 unravel the small intestine until you find the 

 place where it joins the large one. 



(1) How many inches or feet long is it? 



(2) Why so long? 



(8) The Cecum is a very large portion of the intestine, 



ending blindly. 



(a) How long is it? 



(b) Why so large? 



(9) The Large Intestine. Trace it to the vent. 



(a) How does it compare in size and length with the 



small intestine? 



(b) Total length of the alimentary canal? Why so long? 



(c) Does the rabbit eat vegetable or animal food? 



