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PH 172 > Liver Flukes > Flashcards

Liver Flukes Flashcards

0
Q

More common in tropical climate
A. Fasciola hepatica
B. Fasciola gigantica
C. Equal

A

B

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1
Q

A.Heterophyid fluke eggs are embryonated when excreted into environment
B.Heterophyid fluke eggs hatch before they are ingested by suitable snail intermediate host
C. Fasciola gigantica is more common than Fasciola hepatica

Which is false?

A

B

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2
Q 
Treatment for fascioliasis
A. Triclabendazole
B. Praziquantel
C. Both A and B
D. Either A or B
A

A

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3
Q

Fasciola eggs released in the biliary eggs and stool are:
A. Embryonated
B. Immature
C. Gravid

A

B

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4
Q

First IM host of Fasciola. This is where miracidia enters

A

Lymnaea philippinensis

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5
Q

Metacercaria encyst in __ plants
A. Aquatic
B. Terrestrial
C. Aerial

A

A.Aquatic

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6
Q

Where (in what organ) does Fasciola develop into an adult?

A

Biliary duct

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7
Q 
Eggs pass through the \_\_\_ from liver to small intestine. It eventually gets mixed with stool.
A.hepatic portal vein
B.common bile duct
C.hepatic artery
D.portal triad
A

B

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8
Q

T or F

Metacercaria needs second intermediate host for life cycle to proceed.

A

F

It can encyst in the water if there is no available 2nd IM host. Infection by ingestion of contaminated water is therefore possible.

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9
Q 
Which usually does not happen in fascioliasis acute stage?
A. Larval migration to liver
B. High fever and eosinophilia
C. Hepatomegaly
D. Hemobilia
A

D

Sa latent phase ang hemobilia

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10
Q 
Which usually does not happen in fascioliasis chronic stage?
A. Worm maturation
B. Parasite is in the bile duct
C. Inflammation of biliary epithelium
D. Hemobilia
A

A

A is in acute fascioliasis

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11
Q

Identify

Suffocation as result of temporary lodgment of the worm in the pharynx, after ingestion of infected liver

A

Halzuon

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12
Q 
Which is not a parasite of the bile duct & gall bladder?
A. Clonorchis sinensis
B. Metagonimus yokogawai
C. Opistorchis felineus
D. Opistorchis viverrini
A

B

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13
Q 
May contribute to bile duct cancer, but not in PHL because no 1st IM host
A. Clonorchis sinensis
B. Metagonimus yokogawai
C. Opistorchis felineus
D. Opistorchis viverrini
A

A

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14
Q 
Assoc with consuming poorly cooked or raw infected fish
A. Clonorchis sinensis
B. Metagonimus yokogawai
C. Opistorchis felineus
D. Opistorchis viverrini
A

C

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15
Q 
Assoc with consuming fish salad
A. Clonorchis sinensis
B. Metagonimus yokogawai
C. Opistorchis felineus
D. Opistorchis viverrini
A

D

16
Q

Infective stage of gall bladder trematodes

A

Metacercaria in infected raw or undercooked fish

17
Q 
Adult fluke can be found in the ff locations except
A. Bile duct
B. Pancreatic duct
C. Gall bladder
D. Spleen
A

D

18
Q

When adult fluke attaches to mucosa, does it cause permanent ulceration?

A

No

19
Q

T or F

Clonorchis/Opistorchis releases immature egg @ feces

A

F

Mature dapat

20
Q

Snail intermediate host of Clonrorchis sinensis (in lab)

A

Parafossarulus

21
Q

Snail intermediate host of Opistorchis felineus or Opistorchis viverrini

A

Bithynia

22
Q 
Which stage of development does not happen in first IM host?
A. Sporocyst
B. Redia
C. Cercaria
D. Metacercaria
A

D

23
Q

Second IM host of Clonorchis or Opistorchis

A

Fish @ family Cyprinidae

24
Q

Main similarity of Clonorchis sinensis, Opistorchis felineus & Opistorchis viverrini

A

Location of vitellaria

25
Q

Main difference of Clonorchis sinensis, Opistorchis felineus & Opistorchis viverrini

A

Morphology and arrangement of testes

26
Q 
Which has two large highly branched testes arranged in tandem in the posterior half of the body?
A. Clonorchis sinensis
B. Opistorchis sp.
C. Fasciola sp.
D. All of the above
A

A

27
Q 
Which have lobate testes arranged quite obliquely?
A. Clonorchis sinensis
B. Opistorchis sp.
C. Fasciola sp.
D. All of the above
A

B

28
Q 
False about Clonorchis/Opistorchis eggs
A. Well-developed and asymmetrical miracidia inside
B. Distinctly concave operculum
C. Small protuberance at abopercular end
D. None of the above
A

B

29
Q

Food source of Fasciola hepatica or Fasciola gigantica

A

Nasturtium officinale or watercress

30
Q

Food sources of Clonorchis sinensis

A

Cyprinidae fish

Crustacea

PH 172 (25 decks)

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