Question 1

What organism is the main reservoir and host for Toxoplasma gondii?

Accepted Answer

A)  cat
B)  dog
C)  mouse
D)  mosquito
E)  raccoonF) None of the above
G) A) and B)

Question 2

Some cases of CJD may be caused by a mutation of the PrP gene.

Accepted Answer

A) True 
 B)False

Question 3

Tetanus can be prevented with the DTaP childhood immunization and boosters with the tetanus toxoid.

Accepted Answer

A) True 
 B)False

Question 4

Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of

Accepted Answer

A)  Clostridium botulinum.
B)  Clostridium perfringens.
C)  Clostridium difficile.
D)  Clostridium tetani.E) All of the above
F) C) and D)

Question 5

Cerebrospinal fluid is found in the

Accepted Answer

A)  pia mater.
B)  dura mater.
C)  subarachnoid space.
D)  arachnoid mater.
E)  All of the choices are correct.F) A) and B)
G) A) and C)

Question 6

Prophylactic rifampin is indicated for individuals in close contact with patients infected by

Accepted Answer

A)  Haemophilus influenzae.
B)  Listeria monocytogenes.
C)  Cryptococcus neoformans.
D)  Coccidiodes immitis.
E)  Streptococcus agalactiae.F) C) and D)
G) A) and B)

Question 7

Botulism is often referred to as lockjaw.

Accepted Answer

A) True 
 B)False

Question 8

The virulence of Haemophilus influenzae serotype b is associated with its

Accepted Answer

A)  fimbriae.
B)  neurotoxin.
C)  enterotoxin.
D)  capsule.
E)  None of the choices is correct.F) A) and D)
G) All of the above

Question 9

Encephalitis is most commonly caused by a

Accepted Answer

A)  bacterium.
B)  protozoan.
C)  virus.
D)  helminth.E) B) and C)
F) All of the above

Question 10

Tetanus differs from botulism in that

Accepted Answer

A)  tetanus results in flaccid paralysis,while botulism paralysis is rigid.
B)  tetanus results from an exotoxin,botulism from an endotoxin.
C)  there is a vaccine for botulism not for tetanus.
D)  muscles cannot relax in tetanus,while muscles cannot contract in botulism.
E)  All of the choices are correct.F) A) and C)
G) A) and B)

Question 11

Children with hypogammaglobulinemia are at risk for developing polio if given the oral polio vaccine.

Accepted Answer

A) True 
 B)False

Question 12

In paralytic polio,what structures are damaged?

Accepted Answer

A)  peripheral nerves
B)  diaphragm
C)  anterior horn cells
D)  sensory nerves
E)  brain stemF) D) and E)
G) B) and D)

Question 13

The foodborne disease that involves neurotoxin is

Accepted Answer

A)  gastrointestinal anthrax.
B)  Bacillus cereus intoxication.
C)  botulism.
D)  Clostridium perfringens gastroenteritis.E) B) and C)
F) B) and D)

Question 14

Which of the following is not a causative agent of acute encephalitis?

Accepted Answer

A)  JC virus
B)  arbovirus
C)  herpes simplex virus
D)  Toxoplasma gondii
E)  varicella-zoster virusF) B) and C)
G) None of the above

Question 15

Subacute encephalitis may be caused by

Accepted Answer

A)  Toxoplasma gondii.
B)  prions.
C)  herpes simplex virus.
D)  persistent measles virus.
E)  All of the choices are correct.F) None of the above
G) A) and B)

Question 16

All of the following pertain to poliomyelitis except

Accepted Answer

A)  summer outbreaks in the U.S.have been recently increasing.
B)  it is transmitted primarily by fecal contaminated water.
C)  it can be asymptomatic or mild with headache,sore throat,fever,and nausea.
D)  if virus enters the central nervous system,motor neurons can be infected and destroyed.
E)  it is caused by poliovirus (genus Enterovirus) .F) A) and B)
G) A) and C)

Question 17

Treatment for Neisseria meningitidis consists of

Accepted Answer

A)  vancomycin.
B)  penicillin G orally.
C)  penicillin G intravenously.
D)  rifampin.
E)  tetracycline.F) C) and E)
G) C) and D)

Question 18

Which type of neuroglia has phagocytic capabilities in the CNS?

Accepted Answer

A)  astrocytes
B)  Schwann cells
C)  macrophages
D)  microglial cells
E)  neuronsF) All of the above
G) C) and D)

Question 19

In both botulism and tetanus,respiratory muscles cannot facilitate breathing and,if untreated,respiratory collapse leads to death.

Accepted Answer

A) True 
 B)False

Question 20

Each of the following is true for Toxoplasma gondii except that it

Accepted Answer

A)  is a flagellated parasite.
B)  is often fatal for AIDS patients.
C)  can cause stillbirth.
D)  has a narrow host range.E) A) and B)
F) B) and C)

Exam 19: Infectious Diseases Affecting the Nervous System

Each of the following is true for Toxoplasma gondii except that it

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Botulism is often referred to as lockjaw.

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Children with hypogammaglobulinemia are at risk for developing polio if given the oral polio vaccine.

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Treatment for Neisseria meningitidis consists of

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Cerebrospinal fluid is found in the

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Which type of neuroglia has phagocytic capabilities in the CNS?

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What organism is the main reservoir and host for Toxoplasma gondii?

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All of the following pertain to poliomyelitis except

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Prophylactic rifampin is indicated for individuals in close contact with patients infected by

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Tetanus differs from botulism in that

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Some cases of CJD may be caused by a mutation of the PrP gene.

Correct AnswerverifiedShow Answer

The virulence of Haemophilus influenzae serotype b is associated with its

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Which of the following is not a causative agent of acute encephalitis?

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Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of

Correct AnswerverifiedShow Answer

Tetanus can be prevented with the DTaP childhood immunization and boosters with the tetanus toxoid.

Correct AnswerverifiedShow Answer

In paralytic polio,what structures are damaged?

Correct AnswerverifiedShow Answer

Subacute encephalitis may be caused by

Correct AnswerverifiedShow Answer

The foodborne disease that involves neurotoxin is

Correct AnswerverifiedShow Answer

Encephalitis is most commonly caused by a

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In both botulism and tetanus,respiratory muscles cannot facilitate breathing and,if untreated,respiratory collapse leads to death.

Correct AnswerverifiedShow Answer

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