Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Biology > QUIZ 4 Oral Microbiology > Flashcards

QUIZ 4 Oral Microbiology Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

describe the clinical presentation of impetigo

A

amber colored crusts generally found on the face, near the mouth

cases generally arise in damaged skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the bacterial causes of impetigo?

A
  • streptococcus pyogenes
  • staphylococcus aureus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

impetigo has increased prevalence in what 3 populations?

A

HIV, type 2 diabetes, dialysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

describe tonsillitis and pharyngitis

A
  • “strep throat”
  • group A beta hemolytic streptococci, influenza, epstein-barr virus
    • majority caused by virus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are the signs and symptoms of tonsillitis and pharyngitis?

A

sore throat, dysphagia, tonsillar hyperplasia, fever, headache

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how do you diagnose streptococcal pharyngitis and tonsillitis? what is the treatment?

A
  • throat culture
  • treatment - penicillin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the sequelae of streptococcal pharyngitis and tonsillitis?

A

*sequelae means what can happen if it is not treated*

  • scarlet fever
  • rheumatic fever
    • rheumatic heart disease
    • acute glomerulonephritis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

in the clinical presentation of scarlet fever, what does the tongue resemble?

A

a strawberry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is scarlet fever caused by?

A
  • disseminated group A beta-hemolytic streptococcal infection
  • aka untreated streptococcal pharyngitis and tonsillitis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are the oral features of scarlet fever?

A
  • first 2 days: white strawberry tongue - white coating with only visible fungiform papillae
  • 4-5 days: red strawberry tongue - erythematous dorsal surface with hyperplastic fungiform papillae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is diphtheria?

A
  • cornebacterium diphtheriae
  • humans are sole reservoir
  • affects mucosal tissues first
  • tissue necrosis and cardiac complications
    • lethal exotoxin produced by bacteria
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is the clinical presentation of diphtheria?

A

white pseudomembrane usually found towards the back of the throat near the uvula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is syphilis caused by?

A

treponema pallidum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how is syphilis contracted?

A

primarily through sexual contact and from mother to fetus (congenital syphilis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

syphilis is 6x more common in what populations?

A

men and african americans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is primary syphilis?

A
  • characterized by the chancre that develps at the site of inoculation (3-90 days after inoculation)
    • painless ulceration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is gumma?

A
  • characteristic of syphillis (tertiary stage)
  • scattered foci of granulomatous inflammation (type of necrosis)
  • intraoral lesions usually affect the palate or tongue
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is gonorrhea caused by?

A

neisseria gonnorhoeae

19
Q

how is gonorrhea contracted?

A

sexual contact

20
Q

what are the signs and symptoms of gonorrhea?

A

purulent discharge and dysuria

21
Q

what is tuberculosis caused by?

A
  • mycobacterium tuberculosis
    • acid fast bacillus
22
Q

what population is TB common in? how is it spread?

A
  • immunodeficiency
  • spreads through airborne droplets
23
Q

what is scrofula?

A
  • tuberculosis of the neck
  • lymphadenopathy of the neck
  • usually a result of mycobacterium
24
Q

___ can cause the bridge of the nose to collapse

A

multibacillary (lepromatous) leprosy

25
Q

what bacteria causes leprosy?

A

mycobacterium leprae

26
Q

is leprosy contageous?

A

low infectivity - exposure rarely results in disease

27
Q

what are the signs and symptoms of leprosy?

A
  • first symptoms
    • numbness and loss of temperature sensation
  • as the disease progresses
    • the sensations of touch, then pain, and eventually deep pressure are decreased or lost
28
Q

___ is a host of leprosy

A

9-banded armadillo

29
Q

___ colonization can occur in healthy patients: tonsillar crypts, plaque, carious dentin

A

actinomyces israelii

30
Q

55% of actinomyces cases are diagnosed in the ___ region

A

cervicofacial

31
Q

what is the treatment of bacterial infection caused by actinomyces israelii?

A

long-term high dose antibiotics

32
Q

actinomyces infection is a suppurative reaction of infection that may disharge yellow material. describe the yellow material

A
  • represent colonies of actinomyces
  • termed sulfur granules
33
Q

what is the histopathology of actinomyces infection?

A

club-shaped filaments that form a radiating pattern and are surrounded by neutrophils

34
Q

what is cat scratch disease caused by?

A

bartonella henselae

35
Q

cat-scratch disease begins in the ___, and classically spreads to adjacent ___

A

skin, lymph nodes

36
Q

cat-scratch disease is the most common cause of ___ in children

A

chronic regional lymphadenopathy

37
Q

cat-scratch disease arises after contact with what?

A

a domestic cat or kitten - scratches, bites, licks

38
Q

80% of ___ cases occur in patients younger than 21

A

cat-scratch disease

39
Q

candidiasis is caused by what?

A

candida albicans

40
Q

___ is the most common oral fungal infection in humans

A

candidiasis

41
Q

is candida albicans common in the mouth of healthy people?

A
  • about 50% of healthy people carry the organism in their mouth
  • rate increases with age
  • mostly an opportunistic infection, but healthy patients may develop infection
42
Q

what are the two most common species that cause aspergillosis?

A

a. fumigatus (90%) and a. flavus

43
Q

describe noninvasive aspergillosis

A
  • affects a normal host
  • allergic reaction - mass of fungal hyphae
44
Q

describe invasive aspergillosis

A
  • localized can occur in normal host
  • extensive involvement in immunocompromised patient

Oral Biology (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions