The next set of slides refers to normally microbe
free areas of the body.
Think about the questions above the plates as
we go through the slides.
What two factors contribute to transient microflora
appearing in normally microbe free tissue?
How do these terms differ?
Virulence refers to the intensity of….
What parts of the ear normally have microbes?
Do all virulent transient microbes cause disease in
What is microbial antagonism?
Which parts of the renal system are normally germ free?
Why do males have an advantage in germ avoidance?
Is semen always germ free?
All of the following pertain to microbial virulence
A) varies among different microbial species
B) varies within the same species of a pathogen
C) increases with animal passage
D) increases by attenuation
E) decreased by transposal of virulence technique
All of the following refer to the normal microflora
A) fetus is in a sterile environment
B) resident microorganisms normally do not cause
C) some microorganisms are resident while others
D) resident microorganisms found in nervous system
Microflora organisms on or in an individual human body
may become opportunistic under the following conditions
A) the individual is malnourished
B) the individual is immunocompromised
C) the microorganism gains entrance to an unusual
D) the normal microbiota is disturbed
E) the individual experiences microbial antagonism
Which of the following must be true in order to satisfy
A) causative agent observed in a small percentage
of cases of disease
B) must be isolated from hosts that are not
inoculated with the pure culture
C) when pure cultures inoculated in healthy hosts,
they do not show disease
D) causative agent must be isolated from diseased
host and grown in pure culture
E) causative agent must not be re-isolated from
healthy hosts inoculated with pure culture
Factors that improve the chances of a pathogen’s ability
to invade a host and cause infection are known as:
A) contagious factors
B) non-communicable factors
C) viral factors
D) virulence factors
E) Koch’s factors