XVI 



THE NERVOUS SYSTEM 



227 



The digestion of foods, the action of the liver, the dis- 

 tribution of blood, and many other important functions 

 are under the control of these reflex centers. No 

 thought need ever be given to the work of the spinal 

 cord, and so the brain is left free to do other things. 



Cerebrum 



FIG. 123. The left half of the brain, inner surface (Hebert). 



157. The Brain. The brain is the organ of the mind 

 and the seat of consciousness. It enables us to see, 

 hear, taste, smell, and feel ; to remember, imagine, and 

 think ; to love and hate ; to will and execute. It is the 

 organ of the human soul. 



