270 DIGESTION, CIRCULATION, AND ABSORPTION 



Questions 



1. What is meant by Fletcherism ? 



2. ' Why is it advisable that the teeth be examined by a 



dentist at least twice a 



year ? 



3. What are some of 

 the causes of indigestion ? 



4. Why is regularity 

 in eating of importance ? 



<5. What causes teeth 

 to decay ? 



6. Why should the 

 teeth be brushed often ? 



xj. Which of the 

 human teeth are fitted for 

 cutting ? For tearing ? 

 For grinding? 



8. Examine your own 

 FIG. 61. -Mounted set of adult teeth. Right tee th and report just what 

 side, i, incisors ; c, canine ; p, premolars, ' 



m, molars. (Photograph by Davison.) teeth are present, what are 



missing, and whether any 



are coming in out of place. Write a report as home work and 

 bring it to the laboratory. 



9. What glands furnish digestive juices ? 

 10. What are the two parts of the trunk cavity in man? 

 How are they separated ? 



SUMMARY III 



A summary of the digestive system of man. 

 A. PARTS. 



1. Alimentary canal. 



a. Mouth. 



(1) Tongue. Teeth, Kinds, structure and care of. 



b. Pharynx. 



c. Esophagus. 



