62 PHYSIOLOGY FOE THE LABORATORY. 



1. What is its position in the abdominal cavity? 



2. Is it the same size throughout ? 



3. What color is it? 



c. Near the end of the alimentary canal the colon 

 passes into the rectum. 



VIII. THE LIVER. 



There are several glands along the alimentary canal 

 that aid in digestion, the largest of which is the liver. 



a. How many lobes has the liver? 



b. Are they all of the same size ? 



c. What is their position ? 



IX. THE GALL BLADDER. 



Raise the lobes of the liver and find the small gall bladder. 

 It is often green in color. Look for the common bile duct 

 leading from the liver and gall bladder to the small intestine. 



X. THE SPLEEN. 



Near the broad end of the stomach find the spleen, an 

 elongated dark-red body held in place by the thin mem- 

 brane or mesentery. 



XL THE PANCREAS. 



Another gland, a pale-red pancreas, lies in the mesentery 

 in a fold of the small intestine. Look for the opening of 

 the pancreatic duct on the inner wall of the intestine about 

 a foot from the pyloric orifice. Pass a probe into the duct. 



XII. THE MESENTERY. 



Spread out the intestines and notice the mesentery. 



