Micropara 4: Normal Human Microbial Flora Flashcards
(57 cards)
one organism benefits the
other is harmed
Parasitism
both organisms benefit
Mutualism
microbe able to produce disease
Pathogens
one organism benefits,
the other is unaffected
Commensalism
body wide
Systemic
host tissues affected
Disease
microbe overcomes host defense/barriers
Infection
degree of potency
Virulence
host with microbe, but no symptoms
Carrier
microbe responsible for disease
Etiologic Agent
low to moderately virulent pathogen: if able to gain access it will cause disease
Opportunists
microbe that uses dead material (i.e.
yeast)
Saprophyte
transmission between hosts occurs
Communicable
natural source of the microbe:
environment, carriers, infected, animals
Disease reservoir
molecule capable of producing an immune
response
Antigen
is an organism that harbors another organism
Host
means “living together”
Symbiosis
refers to the presence of
microorganisms
Contamination, Infection, and Disease Contamination
pathogens invade the body
Infection
pathogens or other factors disturb the state of health such that the body can not perform is normal functions
Disease
refers to the presence of worms or arthropods in or on the body
Infestation
How long does it take for normal flora to fully establish?
approximately 1 year
18 months
these are microorganisms that normally live in and on body without producing harm
Normal Flora
always present
Resident flora
