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Para 2 > Tapeworms/Larva Causing Problems at Other Sites of Body > Flashcards

Tapeworms/Larva Causing Problems at Other Sites of Body Flashcards

1
Q
  1. What is one of the general characteristics of extraintestinal infections of Cestodes?
    a. Human are the intermediate hosts in life cycles.
    b. Reptides are the intermediate hosts in life cycles.
    c. Human are the definitive hosts in life cycles.
    d. Reptides are the definitive hosts in life cycles.
A

a. Human are the intermediate hosts in life cycles.

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2
Q
  1. Which of the following has a more serious consequence?
    a. Human host ingest T. saginata eggs.
    b. Human host ingest T. solium eggs.
    c. Human host ingest plerocercoid larvae.
    d. Human host ingest coracidium.
A

b. Human host ingest T. solium eggs.

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3
Q
  1. Why is T. solium infection more problematic than T. saginata infection?

a. because T. solium eggs can re-infect the infected human
b. because T. solium larvae can re-infect the infected human
c. because T. solium do not release mature eggs
d. because T. saginata do not release mature eggs

A

a. because T. solium eggs can re-infect the infected human

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4
Q
  1. If humans ingest eggs, oncosphere is released in gut, migrates to ____ or other tissue and transforms into _______ .
    a. lungs; proceloroid
    b. lungs; hydatid cysts
    c. liver; proceloroid
    d. liver, hydatid cysts
A

d. liver, hydatid cysts

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5
Q
  1. Which form of cyst morphology form in the liver and may lack protoscolices in humans?
    a. alveolar cysts
    b. sylvatic cysts
    c. unilocular cysts
    d. osseous cysts
A

a. alveolar cysts

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6
Q
  1. Hydatid cysts reproduce sexually to form daughter cysts within primary cyst.
    True
    False
A

*False

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7
Q
  1. E. multilocularis causes unilocular cyst disease and E. granulosus causes alveolar cyst disease.
    True
    False
A

False

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8
Q
  1. Where do hydatid cysts tend to form?
    a. Lung and Liver
    b. Lung and Gall Bladder
    c. Lung and Lymph Node
    d. None of the above
A

a. Lung and Liver

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9
Q
  1. What is the name of the molecule that plays a role in blocking the alternative pathway of complement system?
    a. lectin
    b. T28
    c. factor H
    d. MAC
A

c. factor H

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10
Q
  1. Convulsions and/or seizures, intracranial hypertension, and psychiatric disturbances are all typical symptoms of
    a. infection with Echinococcus
    b. epilepsy
    c. neurocysticercosis
    d. the sylvatic cycle
A

c. neurocysticercosis

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11
Q
  1. Which of the cysts associated with extraintestinal infections of Cestodes are the most pathogenic and why?
    a. unilocular cysts because of their fluid-filled compartments that can house bacteria
    b. alveolar cysts because of their great capacity to invade and become inseparable from host tissue
    c. osseous cysts because they are small and therefore can occlude vessels.
    d. None of the above
A

b. alveolar cysts because of their great capacity to invade and become inseparable from host tissue

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12
Q
  1. Some tapeworm parasites release plerocercoid growth factor (PGF) which is a growth hormone like factor.
    True
    False
A

True

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13
Q
  1. Match each hydatid cyst with the correct characteristic.
    [Unilocular] 1. Has an outer ectocyst and an inner ectocyst from which protoscolices are formed.
    [Osseus] 2. Form around bones
    [Alveolar] 3. Have a thin outer membrane not readily separated from the host and may lack protoscolices in humans.
A
  1. Match each hydatid cyst with the correct characteristic.
    [Unilocular] 1. Has an outer ectocyst and an inner ectocyst from which protoscolices are formed.
    [Osseus] 2. Form around bones
    [Alveolar] 3. Have a thin outer membrane not readily separated from the host and may lack protoscolices in humans.
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14
Q
  1. Many Echinococcus cysts contain a laminated layer that prevents the binding of host antibodies. However, these cysts may still activate which complement pathway?
    a. Classical Pathway
    b. Lectin Pathway
    c. Alternative Pathway
    d. None of the above
A

c. Alternative Pathway

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15
Q
  1. Hydatidosis is usually found in which part/s of the body?
    a. Brain
    b. Lungs
    c. Liver
    d. b & c
A

d. b & c

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16
Q
  1. In which region of the world is P. westermani most commonly found in?
    a. Asia
    b. South America
    c. Central America
    d. Western Africa
17
Q
  1. How long is the prepatent period for P. westermani?
    a. 5-6 days
    b. 2-4 weeks
    c. 5-6 weeks
    d. It is unknown
A

c. 5-6 weeks

18
Q
  1. Even though P. westermani infects a human’s lungs, abdominal pain can still develop.
    True
    False
19
Q
  1. The definitive host of the Sparganosis parasites are…?
    a. dogs and cats
    b. humans
    c. snakes
    d. frogs
A

a. dogs and cats

20
Q
  1. One major problem in certain places are that people believe eating snakes and frogs will grant them regenerative capabilities, but if the Sparganosis parasites are in their tissue the people are at high risk of contracting the disease.
    True
    False
21
Q
  1. Sparganosis parasites most commonly invade the ________ to get into the human host.
    a. eye and skin
    b. lungs and liver
    c. foot and stomach
    d. fingers and ears
A

a. eye and skin

22
Q
  1. Cysticerci can infect any type of tissue, but brain and muscle tissue are the type of tissue mostly infected.
    True
    False
23
Q
  1. Live tapeworm larvae can be digested by…?
    a. drinking water from faucet
    b. drinking cold milk
    c. eating uncooked food
    d. inhaling contaminated air
A

c. eating uncooked food

24
Q
  1. Where do Heterophyids live in people?
    a. brain
    b. small intestine
    c. lungs
    d. muscle
A

b. small intestine

25
Q
  1. What type of cysts are most likely to be lacking in a human intermediate host?
    a. unilocular
    b. osseous
    c. both A and B
    d. alveolar
A

d. alveolar

26
Q
  1. Human cysticercosis is an infection by larval T.Solium that has encapsulated itself in host connective tissue, forming cysts in the tissues.While the most common sites for infection are the skeletal muscles and the brain cysticerci may be found in what other tissue?
    a. Eye tissue
    b. Lung tissue
    c. Subcutaneous fat
    d. All of the above. Cyst can be found in any tissue.
A

d. All of the above. Cyst can be found in any tissue.

27
Q
  1. Tapeworms release _____________which is a growth hormone ___________.
    a. HGH (human growth hormone); agonist
    b. PGF (plerocercoid growth factor); agonist
    c. EGF (epidermal growth factor); antagonist
    d. GDF-8 (myostatin); antagonist
A

b. PGF (plerocercoid growth factor); agonist

28
Q
  1. Alveolar cysts are least pathogenic.
    True
    False
29
Q
  1. E. multilocularis is sporadic in South America and Africa.
    True
    False

Para 2 (8 decks)

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