NONSPECIFIC INFLAMMATION 311 



variety of inflammations, the type depending upon the con- 

 ditions governing infection and the degree of resistance of 

 the individual. 



An inflammation "of any organ of the body is usually 

 named by adding "itis" to the root of the name of the 

 organ concerned. Examples of such inflammation are ton- 

 silitis (inflammation of the tonsils) ; appendicitis (inflam- 

 mation of the appendix), etc. 



Three organisms are most commonly responsible for the 

 nonspecific inflammations. These are the Streptococcus 







FIG. 62. STREPTOCOCCUS PYOGENES. 



pyogenes, the Staphylococcus aureus, and the Staphylococ- 

 cus albus. Many other species have been described but are 

 much less important. They differ only in minor respects 

 from the organisms mentioned. These forms, therefore, are 

 the only ones which will be discussed. 



STREPTOCOCCUS PYOGENES 



> 



Synonym. Streptococcus erysipelatis. 



This organism probably should be regarded as a group of 

 closely related species rather than as a single species. The 

 classification of the various species, however, has not been 

 satisfactorily worked out and the differences in disease pro- 



