Normal Flora

Front 1

Microorganisms that have natural relationship with the host. Found in low number and has no benefit or harm .

Back 1

Commensals

Front 2

Has no benefit or harm and Mainly found in GIT.

Back 2

Commansals

Front 3

Consist of relatively fixed types of microorganisms. Found in a given area at invariable period. If disturbed promptly re-establish it self.r

Back 3

Residents

Front 4

Consist of nonpathogenic or potential pathogenic microorganisms that inhabit the skin or mucous membrane for hours or days.

Back 4

Transients

Front 5

What are the organisms living in the external environment are attracted to moist and warm body sites?

Back 5

Transients

Front 6

Excluded by host defense or competition from resident flora?

Back 6

Transients

Front 7

Why transient flora exists Temporarily?

Back 7

-They are washed by hand wash or bathing .

-Competition by resident flora.

-Killed by substances produced by resident flora .

-May not survive in acidic or alkaline PH of the body site .

-May be flushed away by body secretions like tears, sweat, oil urine,feces.

Front 8

What is the Potentially pathogenic bacteria that are carried by the individual without causing disease ?

Back 8

Carrier state

Front 9

it is the source of infection to other susceptible (non-immune) individual. ?

Back 9

Carrier state

Front 10

Neisseria meningitides and Streptococcus pneumoniae in the throat of healthy individual.

Are Examples of?

Back 10

Carrier state flora

Front 11

Newborn is ........... in the uterus.

Back 11

(Sterile)

Front 12

What are the Beneficial Effects of Normal Flora?

Back 12

1-Immunostimulation (antibody production)

2- Exclusionary effect (vacuum effect ) and Protection from external invaders.

3- Antagonize other bacteria through the production of substances (toxin) that inhibit or kill non-indigenous bacteria.

4-Production of essential nutrients (Vitamin K & B) by some normal intestinal flora eg. E.coli

Front 13

(Vitamin K & B) produced by some normal intestinal flora called?

Back 13

E.coli

Front 14

Normal flora May be a source of opportunistic infections in patients with ?

Back 14

impaired defense mechanisms.

Front 15

Examples of normal flora in patient with impaired defense mechanisms?

Back 15

Staphylococcus epidermidis and E.coli

Front 16

Some normal flora may modify through their enzymes chemicals in our diets into carcinogens . For example?

Back 16

Artificial sweeteners may be enzymatically modified into bladder carcinogens.

Front 17

• Normal flora affected by :

Back 17

antibiotics, tissue damage, mechanical procedures and diet change.

Front 18

What type of pathogen causes disease in healthy individuals

And associated with a specific and recognizable disease ?

Back 18

True pathogen

Hint 18

There’s 2 types of pathogens

Front 19

Which pathogen causes disease in immune compromised host

And gain access (injury) to sterilie region?

Back 19

Opportunistic pathogen

Front 20

Sterility of internal organs maintained by :

Back 20

- Local defense mechanisms

- Chemical substances in serum & tissues eg. complement and antibodies.

-Phagocytic activity of Polymorphonuclear monocytes.

Front 21

Lower respiratory tract is NOT sterile : (true or false)

Back 21

False

Front 22

Common nose flora are :

Back 22

Staphylococcus epidermidis

Staphylococcus aureus

Corynebacterium species

Front 23

Viridans streptococci

• Commensal Neisseriae

• Corynebacteria

• Bacteroides

• Fusobacteria , Veillonella, Actinomyces, Spirochaetes.

Are examples of ?

Back 23

Normal flora of the oropharynx

Front 24

Heamophilus inflenzea & pneumococcus are:

Back 24

Potential pathogens

Front 25

Streptococcus pyogenes & neisseria menpngitidis are:

Back 25

Less common potential pathogens

Front 26

Oesophagus normal flora similar to ............. flora.

Back 26

Pharyngeal

Front 27

Empty stomach ........... due to .........

Back 27

-Sterile

-Gastric acid

Front 28

Duodenum, jejunum& upper ileium contain........... flora

Back 28

Scanty

Front 29

......... of feces weight is bacteria , mainly dead

Back 29

1/3

Front 30

......... of feces bacteria is anaerobes

Back 30

99%

Front 31

Anaerobic environment maintained by aerobic bacteria utilizing free .....

Back 31

O2

Front 32

........... group is the dominant anaerobes, Bifidobacteria , Lactobacilli…etc.

Back 32

Bacteroides fragilis

Front 33

• Less common aerobics:

Back 33

E.coli ,Proteus ….etc.

Front 34

In both sexes Mycobacterium smegmatisin secretions which contaminate urine and leads to confusion and misdiagnosis of ...........

Back 34

tuberculosis

Front 35

Male & Female distal urethra bacteria :

Back 35

-Staphylococcus epidermidis

-Corynebacteria

-Mycoplasma species

Front 36

Normal flora of the skin exist as:

Back 36

Microcolonies

Front 37

Anaerobic organisms predominate in areas with............ glands.

Back 37

sebaceous

Front 38

Moist skin often colonized by............

(Gram .............. bacteria).

Back 38

• coliforms

• Negative

Front 39

E xternal ear has the following normal flora:

Back 39

• S. epidermidis

• Corynebacteria

• Acid fast bacilli (AFB)( occasionally in wax)

Front 40

Moist skin often colonized by............

(Gram .............. bacteria).

Back 40

• coliforms

• Negative

Front 41

E xternal ear has the following normal flora:

Back 41

• S. epidermidis

• Corynebacteria

• Acid fast bacilli (AFB)( occasionally in wax)

Front 42

Middle and inner ear are ........

Back 42

sterile

Front 43

Conjunctiva has normal flora eg.

Back 43

• Corynebacterium xerosis

• Staphylococcus epidermidis

Front 44

Internal eye is..........

Back 44

sterile