Ch. 25: Microbial Diseases Of The Digestive System Flashcards

1
Q

What causes dental caries?

A

Bacteria in the mouth

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

What pathogen causes dental caries?

A

Primarily Streptococcus mutans

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

What do the bacteria do in the mouth to develop the caries?

What happens if ignored?

A
  • They first form biofilms, which become plaque

* If ignored and gets calcified it becomes calculus.

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

Why don’t you want to caries getting into the pulp?

A

Because it has access to the bloodstream, which are where the capillaries are

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

If cavities are ignore they can progress to?

A

Periodontal Disease

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

What’s a common beginning indicator of gingivitis?

A

Gums that bleed easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What pathogen causes periodontal disease?

A

Primarily Porphyromonas spp.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What pathogen causes salmonellosis?

A

Salmonella enteric a

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

What does salmonella like to go on?

A
  • Eggs
  • Some dairy products
  • Reptiles (turtles)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is cholera caused by?

A

Vibrio cholera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is ORT responsible for saving more lives than IRT (Intravenous Rehydration Therapy)?

A

Because most people don’t have access to hospitals, they can do it at home (parts of the world with extreme poverty)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What’s the most successive treatment globally for cholera?

A

ORT (Oral Rehydration Therapy)

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

What is salmonella a member of?

A
  • Entrobacteria, but not a normal member of the commensals

* You get sick not but overgrowth but by the introduction of salmonella in the G.I. tract

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

H. pylori is the cause of?

A

Peptic ulcers (or peptic ulcer disease)

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

H. pylori love to produce what?

A

Ammonia (NH3^+ + H), which gobbles up protonsmade by the stomach mucosa

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

Clostridium Difficile Associated Diarrhea (CDAD) is mostly spread by?

A

Spores through fecal contamination or vomit

17
Q

What’s the hyper-virulent strain of CDAD?

A
  • BI/NAP1/027

* It produces more toxins A and B, it can hyper sporulate and secrete bi-valent toxins which others don’t

18
Q

What do hepatitis B and C have common?

A
  • They infect the liver
  • Responsible for end-stage liver infection and cancer
  • Chronic Infection
19
Q

Is there a vaccine for hepatitis B?

A

Yes, given at birth

20
Q

How do you get hepatitis B and C?

A

Hep B: Blood transfusion and sharing needles

Hep C: Bodily fluids (sexually)

21
Q

Noro Virus

A
  • # 1 cause of food borne Viral Gastroenteritis (Infection of GI)
  • HAI
  • Cruise ship passengers
22
Q

Ascariasis

A
  • Helminths (round worm) that begins in the intestinal tract
  • Protozoan disease
  • 1.5 billion infected
23
Q

If you’ve had hepatitis for more than six months you’re considered?

A

Chronic
15% progress to chronic stage
Hep B infections are self limiting

24
Q

Dental carries are also known as?

A

Cavities (caries) and plaque

25
Dysentery
Diarrhea accompanied by blood and mucus
26
Types of Periodontal Disease
Gingivitis and periodontitis
27
What toxin does EHEC produce?
Shiga toxin, causes watery diarrhea
28
Dysentery
Diarrhea accompanied by blood and mucus
29
Types of Periodontal Disease
Gingivitis and periodontitis
30
What toxin does EHEC produce?
Shiga toxin, causes watery diarrhea
31
Cause of dental caries?
Lactobacillus and strep mutans
32
Process of Dental Caries
Forms Biofilm -> Plaque -> Calculus -> Carries -> Cavities
33
Salmonellosis can induce ________ if in the bloodstream.
Septic shock
34
Where can you get Salmonellosis from?
Egg, diary, reptiles (turtles)