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Parasitology > Nematodes > Flashcards

Nematodes Flashcards

1
Q

Body covering of nematodes that protects parasite from digestion

A

Cuticle

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2
Q

Nematodes are segmented or unsegmented?

A

Unsegmented

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3
Q

Nematodes are diecious or monoecious

A

Diecious

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4
Q

Causative agent of disease of the poverty

A

Ascaris lumbricoides

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6
Q

Roundworm

A

Nematodes

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7
Q

Juvenile form of nematodes

A

Larvae

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8
Q

Copulation, mating worms

A

Spicule

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9
Q

True or false.

All nematodes are amphids.

A

True

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10
Q

Cephalic chemoreceptors

A

Amphids

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11
Q

All nematodes are Phasmids except

A

Trichinella spiralis
Trichuris trichiura
Capillaria philippinensis

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12
Q

Common name of Ascaris lumbricoides

A

Giant intestinal roundworm

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14
Q

Caudal chemoreceptors

A

Phasmids

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15
Q

Substitute of Phasmids

A

Stichocytes

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16
Q

Thick, nitrogen containing polysaccharide coating

A

Chitin

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17
Q

Most erratic nematodes

A

Ascaris lumbricoides

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18
Q

All nematodes live in small intestine except

A

Enterobius vermicularis

Trichuris trichiura

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19
Q

Infective stage of Ascaris

A

Embryonated egg

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20
Q

Mammiloid layer.

A

Albuminoid

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21
Q

Habitat of Ascaris

A

Small intestine

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22
Q

Worm ball is caused by

A

Ascaris lumbricoides

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23
Q

Common name of Enterobius vermicularis

A

Seatworm or pinworms

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24
Q

Nematodes have (complete, incomplete) digestive tract and reproductive system

A

Complete

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25
Q

Transmission wherein infected pinworm eggs are ingested by the infected individual via hand to mouth contamination

A

Autoreinfection

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26
Q

1 female as ascaris can lay how many eggs per day

A

250,000/day

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27
Q

Habitat of Enterobius

A

Large intestine

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29
Q

Worm of civilization

A

Enterobius vermicularis

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30
Q

Infective stage of Enterobius

A

Embryonated egg

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31
Q

MOT of ascaris

A

Ingestion

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32
Q

Enterobius vermicularis causes

A

Pruritis ani

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33
Q

Unique part of Enterobius vermicularis

A

Cephalic alae or lateral wings

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34
Q

Barrel, foot ball or lemon shaped egg with prominent bipolar plugs

A

Trichuris trichiura

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35
Q

Infected pinworm eggs that migrate back to the hist body

A

Retroinfection

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36
Q

1female Enterobius can lay how many eggs

A

11,000/day

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37
Q

Common name of Trichuris trichiura

A

Whipworm

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38
Q

Habitat of T. Trichiura

A

Large intestine

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39
Q

Infective stage of Trichuris

A

Embryonated egg

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40
Q

Significant characteristic of Male Trichuris

A

360 degree curved tail

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41
Q

Trichuris can caused

A

Rectal prolapse

Anemia

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42
Q

Common name of Capillaria philippinensis

A

Mystery worm

Pudoc worm

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43
Q

Capillaria philippinensis can caused

A

Borborygmus

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44
Q

MOT of Enterobius

A

Ingestion or inhalation

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45
Q

Habitat of Capillaria

A

Small intestine

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46
Q

Intermediate host of Capillaria

A 
Fishes:
Ipon
Birut
Bagsung 
Bagtu
47
Q

Common name of N. americanus

A

New world hookworm

48
Q

Shortest hookworm

A

Ancylostoma braziliense

49
Q

Diagnostic stage of Capillaria

A

Fertilized or unfertilized egg

52
Q

Guitar shaped with flat bipolar plugs

A

Capillaria philippinensis

53
Q

Blood sucking nematodes

A

Hookworm

54
Q

Common name of Ancylostoma duodenale

A

Old world hookworm

55
Q

Cat hookworm

A

Ancylostoma braziliense

56
Q

Dog hookworm

A

Ancylostoma caninum

57
Q

Human hookworm

A

Necator americanus

Ancylostoma duodenale

58
Q

Habitat of human hookworm

A

Small intestine

59
Q

3rd largest hookworm

A

Necator americanus

60
Q

Infective stage of human hookworm

A

Filariform larvae

61
Q

MOT of human hookworm

A

Skin penetration

62
Q

Feeding stage of hookworm

A

Rhabditiform larvae

63
Q

Adult hookworms are differentiated through their

A

Buccal cavity

64
Q

Body curvature of Ancylostoma duodenale

A

C-shaped

65
Q

Lung larval migration of Ascaris

A

Loaffler’s syndrome

66
Q

Hookworm can caused what type of anemia

A

Iron deficiency anemia

67
Q

Lung larval migration of hookworm

A

Wakana disease

68
Q

Bursa of N. americanus

A

Bipartite

69
Q

Buccal cavity of N. Americanus

A

Semilunar cutting plate

70
Q

Animal hookworm

A

Ancylostoma braziliense

Ancylostoma caninum

71
Q

Body curvature of N. americanus

A

S-shaped

72
Q

Buccal cavity of Ancylostoma duodenale

A

2 pairs of teeth

73
Q

Buccal cavity of Ancylostoma braziliense

A

2 pairs

74
Q

MOT of Strongyloides stercoralis

A

Skin penetration

75
Q

American murderer

A

Necator americanus

76
Q

Buccal cavity of Ancylostoma caninum

A

3pairs

77
Q

Common name of Trichinella spiralis

A

Trichina worm

Muscle worm

78
Q

Animal hookworm can caused

A

Cutaneous larva migrans

80
Q

Infective stage of Strongyloides stercoralis

A

Filariform larvae

82
Q

Infective stage of Angiostrongylus cantonensis

A

L3

83
Q

Common name of Strongyloides stercoralis

A

Thread worm

84
Q

Habitat of Strongyloides stercoralis

A

Small intestine

85
Q

Diagnostic stage of Strongyloides stercoralis

A

Filariform

Rhabditiform

86
Q

Strongyloides stercoralis can caused

A

Cochin China diarrhea

Wakana disease

87
Q

2nd longest hookworm

A

Ancylostoma duodenale

88
Q

Habitat of Trichinella spiralis

A

Larvae-muscle

Adult-small intestine

89
Q

Specimen of Trichinella spiralis

A

Muscle biopsy

90
Q

The great imitator

A

Trichinella spiralis

91
Q

Longest nematodes

A

Dracunculus medinensis

92
Q

Habitat of Dracunculus medinensis

A

Subcutaneous tissue

93
Q

Tissue nematodes

A

Trichinella spiralis

Dracunculus medinensis

94
Q

Distinguishing characteristics of Filariform larvae Strongyloides stercoralis

A

Notch tail

Fork tail

95
Q

Infective stage of D. medinensis

A

L3

96
Q

Common name of Angiostrongylus cantonensis

A

Rat lung worm

97
Q

Incidental host of Angiostrongylus cantonensis

A

Man

98
Q

Has uterine tubules that spirally surrounds the intestine

Barber pole pattern

A

Female adult Angiostrongylus cantonensis

99
Q

Intermediate host of Angiostrongylus cantonensis

A

Snails,

Slugs

100
Q

Common name of D. medinensis

A

Guinea worm
Dragon worm
Worm of medina
Fiery serpent of ancient Israelites

101
Q

Pathology of Angiostrongylus cantonensis

A

Eosinophilic meningitis

102
Q

Definitive host of Angiostrongylus cantonensis

A

Rat

103
Q

Has well developed caudal bursa which is kidney shaped and single lobe

A

Male Adult Angiostrongylus cantonensis

104
Q

Bursa of Ancylostoma duodenale

A

Tripartite

105
Q

Smallest nematodes

A

Strongyloides stercoralis

106
Q

Infective stage and diagnostic stage of Trichinella spiralis

A

Encysted larvae

107
Q

Infective stage of Capillaria

A

Larvae

109
Q

Intermediate host of D. medinensis

A

Copepod

110
Q

Diagnostic stage of Enterobius

A

D shaped embryonated egg

Adult worm

112
Q

Pregnant female nematodes

A

Gravid

113
Q

Scientific name of ipon

A

Hypselotris bipartita

114
Q

Nematodes with lung larval migration

A

Ascaris
Strongyloides
Hookworm

Parasitology (9 decks)

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