THE SPECIAL SENSES. 41 



What is meant by the nerves of feeling? 



Does the mind attend to all the movements of the body? 



If not, will you explain your answer? 



What kind of muscles are controlled by the nervous system 



independently of the mind? 

 What is such nervous action called? 

 Can you give an example of reflex action? 

 What is sympathetic nervous action? 

 Can you give an example of it? 

 Why does the nervous system need special care? 

 What kind of exercise is needed by the brain? 

 By what habits are these organs especially injured? 



THE SPECIAL SENSES. 



All the sensory nerves except four, 

 Werves of .. 



common sen- are nerves of common sensation. 



They are distributed everywhere 

 throughout the body. They need no special organs 

 to enable them to receive impressions. Near the 

 surface of the body or in the skin, they end in little 

 folds or loops called papillce. All the nerves of the 

 sense of touch are nerves of common sensation. 



There are four nerves of special sensa- 



Xerves of 



Special Sen- tion. These are the nerves of sight, 

 hearing, smell and taste. Each of these 

 nerves has a special organ without which no impres- 

 sion can be received to be carried to the brain. 

 These organs are very delicate and wonderful struc- 

 tures. They are really special instruments of the 

 nervous system. 



