ANATOMY OF THE NERVOUS SYSTEM 



151 



lining the nose, and to the integument over it. The second di- 

 vision (superior maxillary nerve) of the trigeminal gives branches 

 to the skin over the temple, to the cheek between the eyebrow 

 and the angle of the mouth, and to the upper teeth; as well as to 

 the mucous membrane of the nose, pharynx, soft palate and roof 



nci 



FIG. 62. The base of the brain. The cerebral hemispheres are seen overlapping 

 all the rest. /, olfactory lobes; //, optic tract passing to the optic chiasma from 

 which the optic nerves proceed; ///, the third nerve or motor oculi; IV, the fourth 

 nerve or patheticus; V, the fifth nerve or trigeminalis; VI, the sixth nerve or ab- 

 ducens; VII, the seventh or facial nerve; VIII, the auditory nerve; IX, the ninth 

 or glossopharyngeal; X, the tenth or pheumogastric or vagus; XI, the spinal ac- 

 cessory; XII, the hypoglossal; nci, the first cervical spinal nerve. 



of the mouth. The third division (inferior maxillary) is the largest 

 branch of the trigeminal; it receives some fibers from the larger 

 root and all of the smaller. It is distributed to the side of the 

 head and the external ear, the lower lip and lower part of the face, 

 the mucous membrane of the mouth and the anterior two-thirds 



