CEREBELLUM, PONS, AND MEDULLA. 



231 



minor, and a large sensory root, portio major. It is, therefore, a 

 mixed motor and sensory nerve, supplying motor fibers to the 



Fig. 101. Diagram showing the average area of distribution of the sensory fibers of the 

 trigeminal nerve. (Gushing.) 



N. opht. 



; Principal 

 1 motor 

 i nucleus. 



Descending 

 spinal root. 



N. max. sup. N. max. inf. 



Fig. 102. Nuclei of origin of the fifth cranial nerve. (From Poirier and Charpy, after 



Van Gehuchten.) 



muscles of mastication and sensory fibers of pressure, pain, and 

 temperature to the face, the forepart of the scalp, the eye, nose, 

 portions of the ear, mouth, and tongue, and to the dura mater 



