CRANIAL NERVES 



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others are mixed. For example, the cranial nerves by 

 means of which we get the nervous impulses which give 

 rise to the sensation of sight are sensory, while those 

 which control the muscles of the eyes are motor. 



ncl 



FIG. 130. The base of tke brain and the cranial nerves. 



Reflex action. The cranial nerves, like the spinal 

 nerves, act reflexly as well as voluntarily. For example, 

 if an object touches an eyelash, the lid is instantly 

 closed. The nervous impulses originated by the pressure 

 upon the lash, travel inward along the sensory nerves to 



