Ch 21: Bacterial Agents Of Disease

Front 1

A spirochete is what shaped?

Back 1

Helical and flexible bacteria

Front 2

What helps spirochetes move?

Back 2

Periplasmic flagella

Front 3

Direct observation of ________________ in tissues and blood tests is important in diagnosis.

Back 3

Treponeme

Front 4

Bartonella is the cause of ___________, spread by _____________ and also called ________-_____________ disease. Which is a lymphatic infection associated with clawing or biting.

Back 4

Trench fever also called cat- scratch fever

Front 5

This fever _________________ has an etiologic agent is R. Rickettsia.

Back 5

Rocky Mountain Fever

Front 6

This zoonosis is carried by what two animals?

Back 6

Dog and wood ticks

Front 7

Most cases are on what seaboard? Infection causes a distinct ___________, ______________ rash.

Back 7

Eastern seaboard, spotted migratory rash

Front 8

Rickettsias are tines gram negative rods or cocci that are metabolic and intracellular parasites spread by _________ , ____________, and ___________.

Back 8

Fleas ticks and lice

Front 9

Brill Zinsser is a chronic recurrent form of ________________

Back 9

Epidemic typhus

Front 10

The peridontium is made up of _________ and _____________________ tissues is where infection occurs.

Back 10

Gingiva surrounding

Front 11

A hard concretion called ___________ is started when plaque forms o root of tooth and is mineralized.

Back 11

Calculus

Front 12

Calculus irritates what ?

Back 12

Tender gingiva

Front 13

Inflammatory reactions from calculus cause swelling and create _________________

Back 13

Gingivitis

Front 14

If the tooth socket is involved it is called ________________________ and the tooth may be lost.

Back 14

Periodontitis

Front 15

Vibrios are _________ ______________ or sausage shaped cells with __________ flagella.

Back 15

Short spirals with polar flagella

Front 16

__________________ cholera causes epidemic cholera, which is a human disease that is distributed worldwide in natural _______________.

Back 16

Vibrio and natural waters

Front 17

Severity of cholera causes ________________ and ______________ loss through secretory diarrhea.

Back 17

Electrolyte and water loss

Front 18

Chlamydia is another genus of tiny gram negative ____________________ that are obligate intracellular parasites of animals.

Back 18

Coccobacilli

Front 19

Chlamydia Trachomatis: is a strict human or animal? Pathogen that causes eye disease and _______.

Back 19

Human and std's

Front 20

This occurs in babies following contact with the birth canal.

Back 20

Conjunctivitis

Front 21

Helicobacter pylori is a _____________ cell adapted to the ___________lining that may invade it and cause _____________ diseases such as ulcers and gastritis. Treatment includes and antibiotics and __________ drugs.

Back 21

Helical cell, stomach and antacid drugs.

Front 22

This _______________ species are loose, irregular spirochetes that cause borreliosis. These infections are (___________ borne) mostly by _________.

Back 22

Borrelia , vector mostly by ticks

Front 23

Borreliosis cause what type of fever?

Back 23

Recurrent

Front 24

Borrelia burgdorferi causes what ________________

Back 24

Lyme disease

Front 25

Members of the genus Trepomnema are called?

Back 25

Treponemes

Front 26

Also known as treponema pallidum__________ causes complex progressive disease in ___________ and _________________.

Back 26

Syphilis and adults and children

Front 27

Sexually transmitted ______________ is acquired through close contact with a ____________. Untreated sexual diseases occurs in stages over long or short periods?

Back 27

Syphilis , with a lesion , long periods

Front 28

At the site of entrance for syphilis a primary lesion called a _____________ , which disappears as the microbe becomes systemic.

Back 28

Chancre

Front 29

Secondary _____________ is marked by skin rash, ___________ and damage to ____________ membranes. Latent period establishes pathogen in tissues.

Back 29

Syphilis , fever,

Front 30

Tertiary stage is final and non communicable is marked by rumors called ____________.

Back 30

Gummas

Front 31

This type of syphilis __________________ is acquired transplacentally. It disrupts embryonic and fetal development. May cause resp, skin, bone, teeth, eye, and joint abnormalities.

Back 31

Congenital

Front 32

Two species of rickettsias that infect humans.

Back 32

Ehrlichia and anaplasma

Front 33

Vibrio parahaemolyticus- causes food infection associated with ________water and seafood. Symptoms similar to mild cholera.

Back 33

Seawater

Front 34

Chlamydophila are involved in pneumonia and ornithosis which is a zoonosis associated with what animal__________________?

Back 34

Birds

Front 35

_____________________ naturally lack cell walls and are thus highly pleomorphic , require special lipids from host membranes .

Back 35

Mycoplasmas

Front 36

Treponema pallidum is cultured in/on

A. Blood agar

B. Animal tissues

C. Serum broth

D. Eggs

Back 36

B. Animal tissues

Front 37

A gumma is ?

A. The primary lesion of syphilis

B. A syphilitic tumor

C. The result of congenital syphilis

D. A damaged aorta

Back 37

B. Syphilitic tumor

Front 38

The treatment of choice for syphilis is

A. Chloramphenicol

B. Antiserum

C. Penicillin

D. Sulfa drugs

Back 38

C. Penicillin

Front 39

Which of the treponematoses is/are not an STD?

A. Yaws

B. Pints

C. Syphilis

D. Both A and B

Back 39

D. Both a and b

Front 40

Lyme disease is caused by ___________ and spread by ______________.

A. Borrelia recurrentis, lice

B. Borrelia hermsii, ticks

C. Borrelia burgdorferi, fleas

D. Borrelia burgdorferi, ticks

Back 40

D Borrelia burgdorferi ticks

Front 41

Which of the following conditions may occur in untreated Lyme disease?

A. Arthritis

B. Rash

C. Heart disorder

D. A and B

E. All of these

Back 41

E. All of these

Front 42

Relapsing fever is spread by?

A. Lice

B. Ticks

C. Animal urine

D. A and B

Back 42

D. A and B

Front 43

The primary habitat of Vibrio cholerae is

A. Intestine of humans

B. Intestine of animals

C. Natural waters

D. Exoskeleton of crustaceans

Back 43

C. Natural waters

Front 44

The best therapy for cholera is ?

A. Oral doxycycline

B. Oral rehydration therapy

C. Antiserum injection

D. Oral vaccine

Back 44

B. Oral rehydration therapy

Front 45

Rickettsias and chlamydias are similar in being ?

A. Free of a cell wall

B. The cause of eye infections

C. Carried by arthropod vectors

D. Obligate intracellular bacteria

Back 45

D. Obligate intracellular bacteria

Front 46

Which of the following is not an arthropod vector of rickettsioses?

A. Mosquito

B. Louse

C. Tick

D. Flea

Back 46

a. Mosquito

Front 47

Chlamydiosis caused by C. Trachomatis attacks which structure?

A. Eye

B. Urethra

C. Fallopian tubes

D. All of these

Back 47

D. All of these

Front 48

What stage of chlamydia is/are infectious?

A. Reticulate body

B. Elementary body

C. Vegetative cell

D. Both a and b

Back 48

B. Elementary body

Front 49

Ornithosis is a ____________ infection associated with _____________.

A. Rickettsial, parrots

B. Chlamydial, mice

C. Chlamydial, birds

D. Rickettsial, flies

Back 49

C. Chlamydial, birds

Front 50

Mycoplasmas attack the _______of host cells.

A. Nucleus

B. Cell walls

C. Ribosomes

D. Cell membranes

Back 50

D. Cell membranes

Front 51

The earliest process at the basis of most dental disease is

A. Acquired pellicle

B. Acid release

C. Enamel destruction

D. Plaque accumulation

Back 51

D. Plaque accumulation

Front 52

Dental carries are directly due to

A. Microbial acid etching away tooth structures

B. Buildup of calculus

C. Death of tooth by root infection

D. The acquired pellicle

Back 52

A. Microbial acid etching away tooth structures

Front 53

Necrotizing ulcerative gingivitis is a __________ infection

A. Contagious

B. Mixed

C. Spirochete

D. Systemic

Back 53

B. Mixed