DIGESTION AND ABSORPTION OF NUTRIENTS 83 



intestines which begin at the stomach and open to the out- 

 side of the body at the lower part of the trunk. 



'passage from nose to throat 



.cavity of mouth 

 throat cavity 

 ■opening of windpipe 



pylorus 



■bile ducti 



transverse colon (cut) 



live: — 



common orifice of bile, 



and pancreatic ducts 



beginning of small, 



intestine 



pancreatic duct 



Fig. 26. — Parts of the alimentary canal. (The liver has been tilted upward 

 to show the gall bladder on its lower surface ; a piece of the large intes- 

 tine has been removed to show the pancreas behind it.) Compare this 

 figure with Fig. 2 which shows all the organs in position. 



112. Digestive glands. — Several organs that are neces- 

 sary in the process of digestion, as already discussed in the 



