174 \•E'J'l^I■;l^.\l■;^■ rAriioLocY. 



mation is often succeeded Ijy chronic inflammation. Injuries of 

 tendons are usually accompanied by acute inflammation, but 

 this usually subsides early and is succeeded l^y chronic inflam- 

 mation. Chronic inflammatiun ma\- be succeeded Ijy acute in- 

 flammation pro\ided that the irritating factor be sufficient!}- in- 

 creased or the resistance of the animal diminished. 



Miscclhmeoits. — a. Catarrhal inflammation is inflammation of a 

 mucous membrane, accom]3anied by an excessive production and 

 discharge of mucus. 



b. Purulent inflammation is characterized bv the production 

 of pus. This term is confined, bv some, to surface suppuration. 



c. Ulcerati\'e inflammation is one in which there is erosion 

 of surfaces, i. e., the production of u.lcers. 



d. X'esicular inflammation is one characterized by the pres- 

 ence <)f \esicles. 



e. I^ustular inflammation is one characterized by the pres- 

 ence of pustules. 



f- Proliferative inflammation is practicallv the same as 

 chrcmic inflammation. It signifies the production of new tissue. 



g. Specific inflammation is one resulting from a specific in- 

 fection, as glanders. 



Termination. — The tendency (jf the reaction produced by 

 an injur}- is always favorable, but the reaction ma_y be so sud- 

 den and extensi\-e or continued so long that its results may 

 lie hai'mful. The termination of inflammation depends upon the 

 extent, intensity, and duratir)n of the irritant and the resistance 

 of the tissues. Inflammation may terminate in resolution, tissue 

 proliferation or dissolution. 



Resolution embraces the processes of repair and these may 

 be summarized as follows: 



a. Removal of the cause. 



b. Re-establishment of circulation. This may be accom- 

 plished in a few hours or perhaps not for several davs depend- 

 ing upon the extent of the injury and the kind of tissue injured. 



c. Restoration of vessels to their normal condition. The 

 length of time re(|uired for restoration and the completeness of 

 the process depends upon the severity of the injury and the re- 

 establishment of the circulation. 



d. Removal of the inflammatorv exudate. The time re- 

 quired to remove the exudate depends upon its nature. Serous 

 exudates are usually removed by resorption, i. e., by the lymph 

 channels. Fibrinous and hemorrhagic exudates are usually dis- 

 solved and absorbed, or they may be carried away by phagocy- 



