106 NERVOUS SYSTEM. 



t/?. They are the tic doloureux, inflammation, convul- 

 sive affections, osseous and cartilaginous transformations, 

 atrophy, and hypertrophy. 



Q. What is the pathology of tic doloureux ? 



#. It is not known, but it has been ascribed to an en- 

 gorgement of the neurilema. 



Q. How do you distinguish tic doloureux from rheuma- 

 tism? 



.#. Tic doloureux does not change its locality, as rheu- 

 matism does. 



Q. How are nervous convulsions distinguished from 

 cerebral? 



#. The nervous are local .in their causation and extent, 

 the cerebral are general. 



Q. To what diseases are the ganglia subject? 



#. To atrophy and hypertrophy. 



Q. What changes are the nerves subject to? 



A. To ossification and cartilaginous alteration from in- 

 flammation. 



