Normal Flora

Question 1

Gram postive resident flora found on skin examples

Answer 1

Cocci: staphylococcus
Rode: corynebacterium propionibacterium

Gram negative
Enterobacteria

Question 2

Normal flora found in anterior and posterior nares of respiratory tract

Answer 2

S. Auteurs, a. Epidermidis, diptheriods, enterococci, neisseria

Question 3

Normal flora found in the nasopharynx

Answer 3

a haemolytic streptococcus 
Micrococus 
Corynebacterium
Neisseria
Haemophilus

Question 4

Pathogens found in respiratory tract

Answer 4

Haemophilus influenzae, strept. Pneumoniae, neisseria meningitides

Question 5

Normal flora of the mouth includes which type of bacteria

Answer 5

Aerobic and anaerobic and some yeasts
Examples
Staphylococcus species, enterococcus, corynebacterium
Neisseria, enterobacteria
Actinomycetes, yeasts
Bacteriodes, fusobacterium, veillonella

Question 6

Microorganisms form what fraction of the dry weight of stool

Answer 6

1/3 or 1/4

Also 1 gram of stool
Contains 109 to 1010 bacteria

Question 7

Which factors influence GIT flora

Answer 7

Gastric acids, intestinal secretions, stomach acids, bile salts
Intestinal mobility 
Immunoglobulin 
Antimicrobial drugs
Bacterial interactions(colonization)

Question 8

Importance of GIT bacteria

Answer 8

Antibiotic effect

Resistance to infection

Question 9

Which bacteria are found in external genitalia

Answer 9

Skin bacteria plus
Anaerobic bacteria
Mycoplasma

Question 10

Which bacteria are found in anterior urethra

Answer 10

Skin bacteria plus

Chlamydia, ureaplasma, garnerella, lactobacilli, non pathogenic neisseria