NUTRITIVE FUNCTIONS DIGESTION. 285 



Questions. What constitute the nutritive functions ? What the di- 

 gestive apparatus? What the mouth? How many salivary glands 

 are there ? How many teeth are there in an adult ? How divided ? 

 When do they begin to appear ? When are they shed ? What is the 

 outside of the tooth called ? How is the tongue useful in mastication ? 

 Describe the esophagus the stomach the intestines the liver the 

 pancreas hunger and thirst. Describe the process of digestion. What 

 is the gastric juice ? Chyme ? Chyle ? What is rennet what used 

 for ? Is digestion a chemical process ? How long does it generally 

 take to convert food into chyme ? What influence has the par vaguin 

 nerve on digestion ? Where do the pancreatic and biliary fluids enter 

 the intestines ? their use ? Is the nature of chyle changed by the kind 

 of food ? Of what is it always composed ? What are the principle re- 

 sults of Beaumont's experiments in relation to digestion ? 



