HOST Flashcards
(25 cards)
What are the 3 host microbe relationship?
Symbiosis (Mutualism)
Commensalism
Parasitism
A biological relationship between 2 or more organisms where both benefit from one another
Symbiosis
A host microbe relationship where organism benefits but there is no beneficial or harmful effects to the host
Commensalism
A host microbe relationship where the microbe benefits at the expense of the other (host)
Parasitism
What are the 2 microbial flora that are commonly found in body sites of healthy persons?
- Resident microbial flora
- Transient microbial flora
these are microbial flora microorganisms that colonize an area for months or years
Resident microbial flora
these are microbial floras that are present at a site temporarily, eliminated by host immune defense and competition with resident flora
Transient microbial flora
This mircobial flora’s carrier state may be **acute (S.aureus) or chronic (S.typhi)
Transient microbial flora
What are the factors for composition of the usual flora?
- Nutrition and environmental factors
- Resistance to bile, lysozymes or fatty acids
- pH level
- Oxidation-reduction potential
What is an example of usual flora for a nutritional and environment factor
A. P.acnes in hair follicles
B. Diptheroids in moist areas
C. Lactobacillus in Female genital tract
D. Obligate anaerobes in the colon
B. Diptheroids in moist areas
What is an example of usual flora for a resistance to bile, lysozymes or fatty acid factor?
A. P.acnes in hair follicles
B. Diptheroids in moist areas
C. Lactobacillus in Female genital tract
D. Obligate anaerobes in the colon
A. P.acnes in hair follicles
What is an example for usual flora for pH level factor?
A. P.acnes in hair follicles
B. Diptheroids in moist areas
C. Lactobacillus in Female genital tract
D. Obligate anaerobes in the colon
C.
What is an example for a usual flora with an oxidation-reduction potential factor?
A. P.acnes in hair follicles
B. Diptheroids in moist areas
C. Lactobacillus in Female genital tract
D. Obligate anaerobes in the colon
D.
What are the composition of the microbial flora at different body sites?
- Skin
- Mouth
- Respiratory tract
- Gastrointestinal tract
In skin flora, what could grow on armpit, groin, perineum, axillae and between toes (aerobic diptheroids)?
Aerobic diptheroids
In skin flora, what could grown on hair follicles, sweat and sebaceous glands?
S.epidermidis and Propionibacterium
What are the organs that are part of upper respiratory tract?
Mouth, nasopharynx, oropharynx and larynx
Usual flora found in mouth?
A. Viridans Strep.
B. Gram (-) anaerobes
C. Both
D. None
C. Both are found in mouth
What are usual floras found in nose and nasopharynx?
A. Gram (-) Anaerobes and Diptheroids
B. Diplococci and Diptheroids
C. DIplococci and Gram (-) anaerobes
B.
What are usual floras found in Oropharynx?
A. Gram (-) anaerobes and diptheroids
B. Gram (-) anaerobes and diplococci
C. Both
A.
In gastrointestinal, the anaerobes makes up about how many percentage of microbial flora?
90%
T or F: Esophagus, stomach, small intestine, and colon are the sites for G.I Tract?
True
What are the examples of microbial flora found in G.I. Tract?
- G(+) staph and eneterococcus
- Anaerobic G (+) cocci and sporeforming bacilli
- Enterobacteriaceae
Where are the sites of genitourinary tract?
urethra and vagina
