372 



Seotiott VI. 

 DISEASES OF THE NEEVOFS SYSTEM. 



TETANUS. I PARALYSIS. 



APOPLEXY. MEGBIMS. 



PRELIMINARY REMARKS. 



The phrase " the nervous system," a pkrase we hear repeated 

 almost hourly, is one which if contemplated ia all its numerous 

 and important, relations will be found to embrace the most 

 comprehensive inquiries which physiological science can open 

 to the mind of man. 



The horse, like all other highly organised animals is pos- 

 sessed of " a nervous system," the structure of which is highly 

 complex ; and the uses of which are twofold : first, to place the 

 animal itself in iatimate relation with the external world ; and 

 secondly, "to place every member and every part of a member of 

 his body in iatimate relation with every other member and part 

 of a member. 



" The nervous system," says Erasmus Wilson, " may be 

 divided for convenience of description into — 1st, the brain; 

 2nd, the spinal cord ; 3rd, the cranial nerves ; 4th, the spinal 

 nerves; and 5th, the sympathetic system." 



