228 Physiology. 



the teeth. It is the nerve affected in neuralgia of the face. 

 It is the nerve of sensation for most of the head and face. 



6. The sixth pair controls eye muscles. 



7. The seventh pair are larger, and are farther back 

 and outward. These are the facial nerves, and control the 

 muscles of the face and the facial expression. 



Cerebrum 



Spinal Bulb 



Fig. 89. Vertical Section of Brain. 



8. The eighth, or auditory nerves, are the nerves of 

 hearing. 



9/ The ninth pair arise on the sides of the spinal bulb. 

 They supply the back of the tongue and the pharynx, and 

 are called the glosso-pharyngeal nerves. They give the 

 sense of taste from the base of the tongue. 



10. The tenth pair, or vagus nerves, pass down out of 

 the brain cavity, g^ive off branches to the pharynx and 



