158 



i:UlNARV PATHOLOGY. 



exudate in serous cavities is beneficial, especially in localized 

 inflammation, because it limits or circumscriljes the inflamma- 

 tory irritant or process by coagulating thus producing adhe- 

 sions of the two serous membranes. ^Iv.ny horses upon which 

 paracentesis abdominis or paracentesis thoracis is performed 

 might succumb to generalized peritonitis or pleurisy if the 

 inflammatory process established at the point of the puncture 

 was not circumscribed by adhesions the result of organization 









Fig. 07. — i'ihrinoUN I*leuriH,\', showing an extensive' ^xuilatr upiin surfacf, 



<if fibrinous exudate. The immediate effect of a fibrinous exu- 

 date in a serous cavity is beneficial but the adhesions are fre- 

 cjuently permanent thus interfering with the normal function- 

 ing of the part affected. The fibrinous exudate is also benefi- 

 cial in croupous enteritis because of the protection of the dis- 

 eased mucosa from meclianical injuries by food stuff's. It is 

 on the other hand injurious in croupous enteritis for the exu- 

 date is a favorable nidus for bacteria and they mav produce 

 substances that are irritating to the injured mucosa. The 

 coagulated exudate may also hinder intestinal secretion. The. 



