Normal Flora

 

Normal flora is the community of organisms that normally exist on and in humans. Normal flora differ among people and parts of the body.

 

Skin

Oroharynx

The oropharynx is colonized by many microorganisms. This is often transient, as antibodies are developed and eliminate the pathogen.

 

 

 

 

 

 

 

normal throat culture

 

Upper GI tract

Lower GI tract (many!)

Over 700 species.

Digest insoluble carbohydrates, providing some short-chain sugars for colonic absorption.

Also produce a good amount of vitamin K.

 

 

Genitourinary

The genitourinary tract is colonized by many of the same organisms as the GI tract.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

normal urine culture