NERVOUS SYSTEM. 103 



Q. What inference is made from the universal existence 

 of these ganglions? 



A. That they subserve some great though unknown 

 purpose in the animal economy. 



Q. What views does Beclard add to this nervous sys- 

 tem of organic life? 



#. He does not consider it a settled point, that the 

 sympathetic is an independent nerve; its character may 

 be only that of different organization. 



Q. What are his views of the relations of the filaments 

 and nerves to the ganglions? 



*#. It is proved that nerves and filaments do pass through 

 the ganglions. 



PATHOLOGY OF THE NERVOUS SYSTEMS OF ANIMAL AND 

 ORGANIC LIFE. 



Q. Name the principal diseases of the brain. 



JL. Inflammation, congestion, softening, hardening, 

 scirrhus, ossification, cartilaginous transformation, fungus, 

 apoplexy, epilepsy, hydatids of the choroid plexus, dila- 

 tation of the arteries and veins, effusions of blood and 

 serum, head-ache, diminished volume of the brain. 



'Q. What general observation will apply to many of 

 these affections? 



A. That many of them are consequences of the acute 

 and chronic inflammations of the brain. 



Q. What is the first division of the diseases of the 

 nervous system? 



