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Dental Assisting > microbiology chpt 18 > Flashcards

microbiology chpt 18 Flashcards

1
Q

the study of microorganism is

A

microbiology

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2
Q

disease-producing microorganisms are termed

A

pathogenic

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3
Q

non pathogenic are

A

non-disease producing organisms

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4
Q

virulent diseases are capable of

A

causing a serious disease

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5
Q

aerobes

A

require oxygen to grow

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6
Q

bacteria that grow in the absence of oxygen and are destroyed by oxygen are

A

anaerobes

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7
Q

organisms that grow in the presence or absence of oxygen are

A

facultative anaerobes

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8
Q

a single celled microscopic animal without a rigid cell wall

A

protozoa `

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9
Q

a provirus is what

A

hidden virus during the latency period

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10
Q

very tiny infectious agents that do not contain DNA or RNA

A

prions

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11
Q

some bacteria can change into a highly resistant form called a

A

spore

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12
Q

Creutzfeldt-Jakob disease (CJD) is a rare

A

chronic brain disease with onset in middle to late life

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13
Q

oral candidiasis

A

yeast (fungal) infection of the oral mucosa

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14
Q

HBV is a virus necessary for confection with

A

HDV

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15
Q

HAV is a virus spread by what route

A

fecal-oral

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16
Q

MRSA is a bacterium that is resistant to

A

some antibiotics

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17
Q

the father of microbiology

A

Joseph Lister

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18
Q

who is credited for discovering the rabies vaccine

A

Louis Pasteur

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19
Q

the name of staining process for separating bacteria is

A

gram test

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20
Q

bacterial shapes include

A

spherical (cocci), rod (bacilli), spirochetes

21
Q

bacteria are considered to be “gram-positive” when

A

they appear dark purple under microscope

22
Q

bacteria are considered “gram negative” when

A

colourless or nearly invisible under microscope

23
Q

capsules are

A

a protective layer covering cell wall (increases bacterias ability to resist body defence mechanism)

24
Q

true or false: viruses are smaller than bacteria but can cause fatal disease

A

true

25
Q

virus latency

A

can lie dormant in host cells and be reactivated in future

26
Q

Joseph lister used what on dressings and for aerosol control

A

carbolic acid

27
Q

what is cell specific

A

a virus

28
Q

protozoa is less likely to cause ___ but may cause___

A

disease, but may cause damage

29
Q

fungi can present itself where

A

orally, GI tract, genital tract

30
Q

prions are ___ based particles

A

protein

31
Q

the chain of infection consists of 6 links which are

A

infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host

32
Q

an infectious agent requires a pathogen

A

to be present in sufficient numbers

33
Q

a recevoir is a place where microorganisms normally

A

live and reproduce

34
Q

portal of exit

A

path by which pathogen leaves the host

35
Q

modes of transportation

A

direct transmission, indirect transmission, parenteral transmission, blood borne, food and water, decal-oral

36
Q

portal of entry

A

means of entering the body to cause infection

37
Q

susceptible host

A

a person who is unable to resist infection by the pathogen

38
Q

acute infection

A

short duration, severe symptoms

39
Q

chronic infections

A

long duration or life long

40
Q

latent infection

A

persistent infection in which symptoms come and go

41
Q

the immune system is responsible for providing resistance against

A

communicable diseases

42
Q

inherited immunity

A

present at birth

43
Q

acquired immunity

A

naturally (getting virus or infection), artificially (vaccination)

44
Q

airborne transmission is also known as

A

droplet infection

45
Q

hepatitis and HIV are examples of what kind of transmission

A

direct

46
Q

aerosols are the smallest particle size

A

true

47
Q

largest particle size

A

spatter

48
Q

parenteral transmission also known as

A

percutaneous (through the skin)

Dental Assisting (32 decks)

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