DISEASES OF THE DIGESTIVE SYSTEM. 169 



What is the causation ? 



It may be slight, accompanying pharyngitis, or it may be 

 caused by parasites. 



Irritants, as a chloral pill breaking, or when given in capsule 

 in tympanitic colic, the distended stomach refusing to admit the 

 capsule, which dissolves and liberates the irritant; it may be caused 

 by caustics; also by very hot drinks or drenches. 



The diagnosis is made how ? 



Is often diliicult in mild cases, as the symptoms are often 

 vague. There is pain on pressure, difficulty of swallowing, saliva- 

 tion, and some of the symptoms of choking, arching of the neck, 

 retching, squaling, etc. 



What is the treatment ? 



Cooling and mucilaginous drinks are beneficial; allow animal 

 to lick ice; astringents, as a solution of alum, or chlorate of potash, 

 silver nitrate, tannin, etc. 



The diet should be liquid and non-irritating. 



3. DISEASES OF THE STOMACH. 



GASTEITIS. 



Name the forms of gastritis. 



Gastritis may be conveniently divided into three forms, namely, 

 Toxic Gastritis, Acute Gastritis, and Cheonic Gastritis. 



TOXIC GASTEITIS. 



What is the synonym ? 



Poisonous gastritis. 



Define this form. 



This is an acute and violent inflammation of the mucous mem- 

 brane of the stomach with loss of tissue. 



What is the pathology? 



The mucous membrane is reddened, swollen, and eroded in 

 spots or patches; the ulcerations which are present may be super- 

 ficial or deep; the gastric glands are destroyed. 



