38 Veteri7iary Medicine. 



in a sling to prevent oedema, inflammation and wounds by the 

 teeth. In bad cases of bilateral traumatic glossoplegia in meat- 

 producing animals it has been advised to have the subject 

 butchered. 



DISEASES OF THE SALIVARY GLANDS. 



Modifications of the secretion are commonly simple excess or 

 deficiency, with a correspondingly high or low specific gravity of 

 the product. There may, however, be a virulent element as in 

 the case of rabies. 



SUPPRESSION OF SALIVARY SECRETION. 

 XEROSTOMIA. 



Causes ; fever ; vascular vacuity, after bleeding, diarrhcea, etc. ; destruc- 

 tion of glands ; Calculus. vSymptoms ; slow, difficult mastication ; digestive 

 disorder. Treatment ; remove mechanical obstruction ; correct constitu- 

 tional disorder ; employ .stimulation to gland — pilocarpin, electricity. 



Entire suppression of salivary secretion is usuallv the result of 

 some other disease. It may be a manifestation of the general 

 tendency to retain water in the febrile system, or it may be an 

 indication of vacuity of the va.scular sy.stem as after bleeding, 

 profuse diarrhoea, diuresis, or diaphoresis, or it may be the result 

 of the entire destruction of a salivary gland or the obstruction of 

 its duct by some foreign body or calcuhis. In proportion to the 

 completeness of the suppression, mastication and deglutition be- 

 come difficult or impossible. Tlie condition mtist be met by the 

 removal of the cause which is operative in the particular case. 

 The treatment may be surgical for the removal of ob.structions, 

 or medical with the view of overcoming angemia, fever, profuse 

 secretions from other enuuictories, or the simple physiological in- 

 activity. To meet the last indication small doses of pilocarpin, 

 or the application of a gentle current of electricity will usually' 

 succeed. 



