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10 Cards in this Set
- Front
- Back
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What term is defined as any deviation from health where tissues and organs are damaged and disrupted?
a) commensalism b) pathology c) disease d) infection e) transient |
Disease - any deviation form health where tissues and organs are damaged and disrupted
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The human body provides a favorable habitat for microorganisms. Which of the following does not contribute to the favorable habitat?
a) stable temperature b) extensive surfaces upon which to colonize c) constant source of nourishment d) relatively stable pH e) low levels of moisture |
Low levels of moisture do not contribute to a favorable habitat for microorganisms in the human body
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What greatly influences the presence and numbers of transient flora?
a) occupational exposure b) hygiene c) humidity d) oils e) clothing |
Hygiene greatly influences the presence and numbers of transient flora
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What factor prevents the stomach from being colonized by microbes?
a) peristalsis b) digestive enzymes c) secretory IgA d) bile e) acids |
Acid prevents the stomach from being colonized by most microbes
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Why are human bites especially dangerous?
a) because the oral cavity and saliva contain high numbers of bacteria b) because saliva contains lysozyme c) because human teeth are exceedingly sharp d) because the protozoa in the mouth are harmful when transfered e) because normal flora of the mouth are pathogenic |
Because the oral cavity and saliva contain high numbers of bacteria
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The first organisim(s) to colonize the respiratory tract are ________.
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Oral streptococci is the first organisism to colonize the digestive tract
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The _______ keeps the kidney, ureter, bladder, and upper urethra sterile
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The flow of urine keeps the kidney, ureter, bladder, and upper urethra sterile
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Axenic animals display all but which of the following
a) degenerative diseases of the intestinal tract b) shortened lifespan c) absence of dental caries d) vitamin deficiencies e) increased sensitivity to enteric pathogens |
Axenic animals to not have a shortened life span
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The greatest number of pathogens use ______ as a portal of entry
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The respiratory tract
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What characteristics affects the extent to which an organism is carried into the brochial tree following inhalation
a) the eclectrostatic charge of the microorganism b) the size of the microorganism c) the breathing patterns of the host d) the status of the hosts immune system e) the presence or absence of flagella on the microorganism |
The size of the microorganism
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