SECTION IX. 

 DISEASES OF THE NERVOUS SYSTEM. 



What is delirium ? 



The term delirium is difficult to define, on account of its being 

 so variously applied; in veterinary practice it is usually considered 

 to be incoherent acts of an animal. 



Define hyperaesthesia. 



This is a condition characterized by an exalted excitability in 

 the various parts of the sensory apparatus, that is, increased 



sensation. 



What is hyperalgesia? 



It is a condition characterized by that form of pain of a part 

 designated as tenderness. 



What is meant by paraesthesiae ? 



By this is meant those sensations which arise centrally in the 

 nerve-fibres or centres, and are sent outward toward the surface or 

 periphery and recognized by consciousness; examples are pain, 

 coldness, heat, constriction, distention, malposition, etc. 



Define anaesthesia. 



This is an interruption in the conducting power of sensory 

 nerves characterized by a partial or complete loss of sensibility in 

 areas of the skin. 



COMA. * 



Define coma. 



Coma is a functional condition characterized by a state of un- 

 consciousness from which the patient cannot be aroused, or is 

 aroused with some difficulty. 



What is meant by carus ? 



Cams signifies that state from which the patient cannot be 

 aroused, and is called profound coma. 



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