318 ELEMENTS OF PHYSIOLOGY 



13. Does uncomfortable clothing make one self-conscious? 



14. Is it as important to have the shoes and the clothing perfectly 

 comfortable when going out as when staying at home? 



15. Would you get more rest by sleeping for four hours undisturbed, 

 or by sleeping eight hours but being awakened every half hour by some 

 noise and going immediately to sleep again ( 567) ? 



1 6. When one sits with the leg,under the body, why is it that the 

 compression causes a tingling sensation or paralyzed feeling in the foot ? 



17. When one's finger is cut, where is the pain? 



18. Why does a hand still seem to itch after it is amputated? 



19. Does the act of assuming artificial positions like the "straight- 

 front" tend to make one stiff or graceful, self-conscious or spontaneous? 



20. Do the girl who frets over washing the dishes, working with an 

 unwilling mind, and the boy who, while he is sawing wood, is wishing 

 to go to a baseball game, do their work with more or less fatigue than 

 if they worked cheerfully and willingly ? Why? 



EXERCISE III 



21. How is a sneeze a protective act ? 



22. Why may a dyspeptic digest a large Thanksgiving or Christ- 

 mas dinner when he often has trouble with an ordinary dinner? 



23. Why is it more difficult for an adult to learn to speak a language 

 than for a child? Why do adults find drawing and languages more 

 difficult to acquire than history and mathematics ( 546)? 



24. In what two ways may opening a window when a student is 

 becoming dull and drowsy at his books enable him to wake up and 

 study with ease? 



25. What is the basis of the saying among mothers that a " croupy " 

 child can be cured of the tendency by being allowed to go barefoot a 

 great deal ? 



26. Did you ever know any person to whom the terms "afflicted by 

 the disease of work" applied? Also the opposite, " disease of idleness"? 



27. Muscles may be classed as minor, such as those of the eye, 

 voice, hand ; and major, such as those of upper arm, leg, trunk. Why 

 is the use of the minor muscles exhausting to the nerves, while the use 

 of the major muscles strengthens the nerves ( 227, 234) ? 



28. What kind of cells shrivel like a baked apple when they become 

 fatigued (Fig. 210) ? 



29. A nerve or nerve fiber does not become tired or fatigued in any 

 way. What do we mean when we say the nerves are worn out 

 (Fig. 210)? 



