THE 



PRINCIPLES AND PRACTICE 



OF 



VETERINAEY SURGERY. 



CHAPTER L 



INFLAMMATION. 



DEFINITION — PATHOLOGY — PHENOMENA — CAUSES — VARIETIES DUE TO 

 CAUSATION LOCAL SYMPTOMS — CHRONIC INFLAMMATION — TER- 

 MINATIONS — RESOLUTION EFFUSION. 



The process of inflammation is the most important of all morbid 

 actions and conditions. 



It has been variously defined by different investigators, ac- 

 cording to what they conceived it to be. Thus Hunter says 

 it is simply an increased action of the vessels. In Mr. Syme's 

 opinion, it is "a perverted action of the capillary system, generally 

 attended by heat, redness, pain, and swelling." Dr. Alison de- 

 scribes it as " a peculiar perversion of nutrition or of secretion ; " 

 and Dr. Aitken defines it as " a complex morbid process charac- 

 terised (1.) by a suspension of the concurrent exercise of function 

 among the minute elements of the tissue involved ; (2.) by 

 stagnation of the blood, and abnormal adhesiveness of the blood 

 discs in the capillary vessels contiguous to the tissue elements 

 whose functions are suspended ; (3.) by contraction of the 

 minute arteries leading to the capillaries of the affected part, 

 with subsequent dilatations and paralysis of the contractile 

 tissue of the affected blood-vessels." Dr. Burdon Sanderson 

 defines it to be " a succession of changes which occur in a 



