問題一覧
1
What are the nonspecific surfaces defense for structural? (Select all that apply)
skin , mucous membranes
2
Paratisism is known as
one organism is benefited at the expense of the other
3
Mutualism is known as
both organism benefits
4
Latent disease is best described as
disease with a period of no symptoms when the pathogen is inactive
5
Opportunistic pathogens are known as
pathogens that don’t cause diseases in their normal habitat in a healthy person but they may do so in a different environment
6
Septicemia is best described as
growth of bacteria in the blood and spread throughout the blood
7
Focal infection is best described as
systemic infection that began as local infection
8
What is Etiology is best described as
the study of the cause of a disease
9
Host is known as what micrbotia?
resident
10
Herd immunity is best described as
immunity in most of population
11
Microorganism normally present only on what type of surfaces of the body?
external and internal
12
External surfaces include
both
13
microbial antagonism is best known as
is a competition between microbes
14
Mice raised in a germ—free environment display:
decreased nutrients absorption , less developed intestines , vatimin deficiency , underdeveloped immune system , heightened sensitity to pathogens
15
Symbiosis is known as ____?
the relationship between normal microbiota and the host
16
Prevalence is best described as?
fraction of a population having a specific diseases at a given time
17
What are the limiting factors of normal biota—skin? (Select all that apply)
dryness , pH 3.5-5.5 , fatty acids at puberty
18
Endemic disease is best described as?
disease constantly present in a population
19
Pathology is best described as
the study of disease
20
Probiotics is best described as:
live microbes applied to or ingested into the body, intended to exert a beneficial effect
21
Microbiome is best described as
all the genomes (species) of the differentt microbial symptoms
22
Subclinical diseases is best described as
no noticeable signs or symptoms (inapparent infection)
23
Epidemic disease is best described as?
disease acquired by many host in a given area in a short time
24
Acute disease is
symptoms develop rapidly
25
Contagious diseases is best described as?
a disease that is easily spread from one host to another
26
Subacute disease is when
symptoms between acute and chronic
27
Infectious disease is best described as?
the presence of a particular type of microorganism in a part of the body where it is not normally found
28
What are the nonspecific surface defense for mechanical? (Select all that apply)
tears , mucocillairy system , flushing, ie urine flow
29
Chronic disease is
disease develops slowly
30
Human metabolic features is best described as?
combination of human and microbial traits
31
Systemic infection is best described as
an infection throughout the body
32
Microbiota is best described as
microorganism that live inside and on humans
33
Communicable diseases is best describe as
a disease that is spread from one host to another
34
Bacterial genes outnumber your genes by how much?
>300:1
35
Syndrome is best described as?
a specific group of signs and symptoms that accompany a disease
36
What are the benefits of the normal flora? Select all that apply
synthesize and excrete vitamins , prevent colonization by pathogens , many antagonize other bacteria , stimulate the development of certain tissue , stimulate the production of cross-reactive antibodies
37
What type of microbiota permanently colonize the host?
normal
38
Infection is best described as
is the invasion or colonization of the body by pathogenic microorganism
39
What are the nonspecific surfaces defenses for biochemical? (Select all that apply)
dryness , fatty acids acidity , lysozyme , bile
40
commensalism is best described?
one organism is benefited and the other is unaffected
41
Bacteremia is best described as
bacteria in the blood
42
Primary infection is best described as
acute infection that causes the initial illness
43
Incidence is best described as
fraction of a population that contracts a disease during a specific time
44
Sign is best described as?
a change in a body that can measured or observed as a result of diseases
45
Sporadic diseases is best described as?
diseases that occurs occasionally in a population
46
Secondary infection is best described as
opportunistic infection after a primary (predisposing) infection
47
Local infection is best described as?
pathogens are limited to a small area of the body
48
Toxemia is best described as
toxins in the blood
49
Normal microbita protected by the host by (select all that apply)
occupying niches (competing for nutrients and producing harmful substance harmful to the invading microbes) that pathogen might occupy , producing acids , producing bacterions (protiens that inhibit the growth of other bacteria of the same/closely related species)
50
Symptom is best described as?
a change in body function that is felt by a patient as a result of disease
51
Bacteria cells outnumber your cells by how much
3:1
52
Internal surfaces (select that all apply)
nose , mouth , vagina , intensinal tact , urethra
53
Pandemic disease is best described as?
worldwide epidemic
54
Disease is described as
occurs when an infection results in any change from a state of health
55
Non-communicable disease:
a diseases that is not transmitted from one host to another
56
What type of microbita may be present for days,weeks, or months
transient
57
Viremia is best described as
viruses in the blood
58
Pathogensis is best described as
the development of disease
59
What is the first stage of a disease graphic?
incubation period (no signs of symptoms), prodromal period (mild signs of symptoms), period of illness (most severe signs and symptoms), period of decline, and period of convalencecene