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Para Lec > Trematodes > Flashcards

Trematodes Flashcards

1
Q

What is the common name for trematodes

A

flukeworms

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2
Q

What are the characteristics of trematodes

A

Dorso-ventrally flattened and leaf-like with bilateral asymmetry, except Schistosomes

Hermaphrodites, except Schistosomes

Eggs are operculated, except Schistosomes

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3
Q

What is the general infective stage of trematodes

A

metacercaria

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4
Q

What is the infective stage of Schistosoma spp

A

cercaria

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5
Q

What is the mode of transmission of general trematodes

A

ingestion

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6
Q

What is the mode of transmission of Schistosoma spp

A

Skin penetration

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7
Q

What is the 1st IH of trematodes

A

snail

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8
Q

What is the 2nd IH of trematodes

A

another snail, fish, crustacean, fresh water plants

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9
Q

These parasites IH is fish

A

Heterophyes heterophyes, Clonorchis sinensis, Opistorchis felineus

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10
Q

These parasites IH is crab

A

Paragonimus westermani

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11
Q

These parasites IH is vegetation

A

Fasciola hepatica, Fasciola gigantica, Fasciolopsis buski

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12
Q

These parasites IH is snail

A

Echinostoma ilocanum

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13
Q

It is the organ for attachment

A

Acetabulum

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14
Q

What kind of sucks does the acetabulum have

A

oral and ventral sucker

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15
Q

What parasite has 3 suckers

A

Heterophyes heterophyes

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16
Q

What is the 3rd sucker of the Heterophyes heterophyes

A

Gonotyle (genital sucker)

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17
Q

It is the sheep liver fluke

A

Fasciola hepatica

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18
Q

What is the disease associated with sheep liver fluke

A

liver rot in sheep

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19
Q

What is the 2nd IH of fasciola hepatica

A

water plants (watercress, kangkong)

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20
Q

It is the giant liver fluke

A

Fasciola gigantica

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21
Q

What is the associated disease of the giant liver fluke

A

infects cattle in the PH

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22
Q

It is the most important liver fluke to human

A

Clonorchis sinensis

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23
Q

It is the chinese liver fluke or oriental fluke

A

Clonorchis sinensis

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24
Q

What is the 2nd IH of Clonochis sinensis

A

fish

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25
Q

What is the cat liver fluke

A

Opistorchis felineus

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26
Q

What is the 2nd IH of cat liver fluke

A

cyprinoid fish

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27
Q

It is the giant intestinal fluke

A

Fasciola buski

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28
Q

What is the 2nd IH of giant intestinal fluke

A

water caltrop, chestnut, bamboo shoots

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29
Q

These parasites have indistinguishable eggs

A

Fasciola spp

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30
Q

This parasite has a hen’s egg shaped ova

A

Fasciola buski

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31
Q

It is the Garrison’s fluke or Spiny fluke

A

Echinostoma ilocanum

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32
Q

It is the 2nd IH of the Garrison’s fluke or Spiny fluke

A

snail

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33
Q

It is the smallest but deadliest fluke of man

A

Heterophyes heterophyes

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34
Q

This parasite has a third sucker

A

Heterophyes heterophyes

35
Q

It is the Von Siebold’s fluke

A

Heterophyes heterophyes

36
Q

What is the 2nd IH of Von Siebold’s fluke

A

snail, fish

37
Q

It is the oriental lung fluke

A

Paragonimus westermani

38
Q

What are the associated disease of the oriental lung fluke

A

Pulmonary inflammation and fibrosis resulting in
pneumonia or TB-like syndrome

endemic hemoptysis

39
Q

What is the LabDx of oriental lung fluke

A

examination of sputum of stool for characteristic eggs

40
Q

What is the 2nd IH of oriental lung fluke

A

freshwater cray, crayfish

41
Q

This parasite have with
thickened abopercular end
opposite the operculum

A

Paragonimus westermani

42
Q

It is an adult parasite that resembles a coffee bean

A

Paragonimus westermani

43
Q

It is the most romantic parasite

A

Schistosoma spp

44
Q

What is the LabDx of the most romantic parasite

A

Demonstration of / eggs in
feces, rectal or liver biopsies,
urine

Faust and Meleney’s egg
hatching technique

Circumoval precipitin test (COP)

45
Q

The characteristic of adult parasites
Adult male – with
gynecophoral canal where the female is held during copulation

A

Schistosoma spp

46
Q

It is the oriental blood fluke

A

Schistosoma japonicum

47
Q

What is the disease that is caused by oriental blood fluke

A

Katayama’s fever

48
Q

It is the smallest blood fluke

A

Schistosoma mansoni

49
Q

It is the vesical blood fluke

A

Schistosoma haematobium

50
Q

What is the disease that is caused by the vesical blood fluke

A

Bilharziasis or urinary schistosomiasis

51
Q

What is the habitat of the oriental blood fluke

A

small intestines

52
Q

What is the habitat of the smallest blood fluke

A

Colon, rectum

53
Q

What is the habitat of the vesical blood fluke

A

Urinary bladder

54
Q

This parasite has a small, knoblike or recurved hook on one side of its egg

A

Schistosoma japonicum

55
Q

It is a parasites egg that has lateral spine

A

Schistosoma mansoni

56
Q

It is a parasites egg that has a terminal spine

A

Schistosoma haematobium

57
Q

What is the IH of oriental blood fluke

A

Oncomelani quadrasi

58
Q

What is the IH of the smallest blood fluke

A

Biomphalaria
Australorbis
Tropicorbis

59
Q

What is the IH of vesical blood fluke

A

Bulinus
Physopsis
Biomphalaria

60
Q

All trematodes are hermaphroditic

True or False.

A

FALSE

Schistosomes are have separate sexes.

61
Q

What diagnostic test is best for trematode detection?

A

DFS.

Trematodes are too heavy for floatation technique.

62
Q

What is the purpose of oral and ventral suckers?

A

Attachment

63
Q

Flukes are oviparous.

True or False.

A

TRUE.

They lay unemmbryonated eggs.

64
Q

Common name of trematodes

A

Fluke

65
Q

All trematodes require an intermediate host.

True or False.

A

True

66
Q

What is the definitive host of flukes?

A

Humans

67
Q

What is the first intermediate host of flukes?

A

Snail

68
Q

Also known as the Giant Intestinal Fluke

A

Fasciolopsis buski

69
Q

It has an operculated egg with shoulders and small knob at abopercular end.

A

Clonorchis sinensis

70
Q

What is the infective stage of F. hepatica?

A

Metacercaria

71
Q

Trematode found in Japan, Korea, China, Philippines, and Southeast Asia?

A

Paragonimus westermani

72
Q

Chronic cough and abundant mucus in heavy infections, high eosinophilia, and light infections are asymptomatic.

A

Paragonimus westermani

73
Q

Schistosoma with terminal spine

A

Schistosoma haematobium

74
Q

Schistosoma with lateral spine

A

Schistosoma mansoni

75
Q

Second intermediate host of P. westermani?

A

Crab

76
Q

Second intermediate host of Echinostoma ilocanum

A

Snail

77
Q

The third sucker of trematodes

A

GONOTYLE

78
Q

It is the smallest yet the deadliest fluke of man

A

Heterophyes heterophyes

79
Q

Schistosoma that resides in the bladder

A

Schistosoma haematobium

80
Q

In Schistosomes, where is the female held during copulation?

A

GYNECOPHORAL CANAL

81
Q

Fluke causing TB-like symptoms

A

Paragonimus westermani

82
Q

What is the infective stage of Schistosomes?

A

Cercaria

83
Q

All trematode ova are operculated.

A

FALSE.

Schistosomes ova are non-operculated.

84
Q

What is the mode of transmission of Schistosomes?

A

Skin Penetration

Para Lec (2 decks)

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