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parasitic worms Flashcards

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1
Q

what are the cylindrical, non segmented worms called

A

round worms/nematodes

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2
Q

what are the cylindrical, non segmented worms called

A

round worms

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3
Q

what type of worms are separate sexes?

A

round worms

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4
Q

what type of worms do not have hooks or suckers to attach to their hosts

A

round worms

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5
Q

where are round worms found in their host

A

intestinal tract, blood, organs and tissues

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6
Q

what are the flat body type worms

A

flat worms

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7
Q

what are the hermaphroditic worms

A

flat worms

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8
Q

what type of worms have hooks and suckers to attach to their host

A

flat worms

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9
Q

where are flat worms found in their host

A

intestinal tract, blood, organs and tissues

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10
Q

what is one of the reasons that billions of people have parasitic worms

A

the use of night soil, or human feces as fertilizer

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11
Q

where do Ascares lumbricoides inhabit their host

A

the small intestines

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12
Q

how long does Ascares lumbricoides grow

A

12-14 inches long

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13
Q

where will the adult worm of the Ascares lumbricoides exit from their host

A

nose, mouth or anus

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14
Q

what is the mode of transmission for the Ascares lumbricoides

A

human ingestion of the infective ova

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15
Q

what is the infective stage of Ascares lumbricoides

A

ova/egg, its world wide and transmitted from the soil

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16
Q

what is the host of the Ascares lumbricoides

A

the human

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17
Q

how many people is thought to be infected with Ascares lumbricoides

A

800 million infected

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18
Q

what is the area that the Enterobius vermicularis will inhabit

A

the large intestines

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19
Q

where do Ascaris lumbricoides inhabit their host

A

the small intestines

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20
Q

how long does Ascaris lumbricoides grow

A

12-14 inches long

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21
Q

where will the adult worm of the Ascaris lumbricoides exit from their host

A

nose, mouth or anus

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22
Q

what is the mode of transmission for the Ascaris lumbricoides

A

human ingestion of the infective ova

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23
Q

what is the infective stage of Ascaris lumbricoides

A

ova/egg, its world wide and transmitted from the soil

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24
Q

what is the host of the Ascaris lumbricoides

A

the human

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25
Q

how many people is thought to be infected with Ascaris lumbricoides

A

800 million infected

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26
Q

what is the area that the Enterobius vermicularis will inhabit

A

the large intestines

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27
Q

what is the mode of transmission of the Enterobius vermicularis

A

ingestion of the egg/ova

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28
Q

what is the most common US parasitic worm

A

the Enterobius vermicularis ( pinworm)

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29
Q

what is the infective stage of the Enterobius vermicularis

A

egg/ova

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30
Q

what is the definitive host for Enterobius vermicularis

A

human

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31
Q

what is the diagnostic test done for Enterobius vermicularis

A

scotch tape preparation

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32
Q

what is the name of the parasitic worms in which the female worm, crawls out of the large intestine, exits the anus and lays her eggs

A

Enterobius vermicularis

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33
Q

what is the length of the Enterobius vermicularis

A

1/4 inch long, thread like, very very small

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34
Q

where does the Trichuris trichiura inhibit on its host

A

the large intestine

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35
Q

what is the common name for Trichuris trichiura

A

the whipworm, it looks like a bull whip, curly end, white in color

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36
Q

what is the mode of transmission for Trichuris trichiura

A

ingestion of the developed ova/egg

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37
Q

what is the infective stage of the Trichuris trichiura

A

the egg

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38
Q

what is the host for Trichuris trichiura

A

human

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39
Q

what is the disease caused by Trichuris trichiura

A

whipworm, greater than 700 million people infected world wide, its a soil transmitted r/t the use of human feces ( night soil)

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40
Q

what is the infective stage of Necator americanus

A

larvae filariform

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41
Q

what is the mode of transmission of Necator americanus

A

filariform larvae in the soil, penetrates the skin

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42
Q

what is the host for Necator americanus

A

humans

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43
Q

what type of worm is Necator americanus

A

its a round worm

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44
Q

what type of worm is Ascaris lumbricoides

A

its a round worm

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45
Q

what is the reservoir host for Necator americanus

A

canines, felines, rabbits, sheep, cows and pigs

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46
Q

what is the disease from Necator americanus

A

hook worm, soil transmission ( larval stage) enters through the skin, goes to the lung, is coughed up, swallowed, and invades the small intestine. the adult worm feeds on blood, causing anemia and malnutrition

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47
Q

what type of worm is Anisakis simplex

A

a round worm

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48
Q

what is the mode of transmission for Anisakis simplex

A

eating uncooked infected fish (sushi)

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49
Q

what is the infective stage for Anisakis simplex

A

L3 larval stage

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50
Q

what is the definitive host for the Anisakis simplex

A

Definitive host is the marine mammal

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51
Q

what is the intermediate host for the Anisakis simplex

A

the intermediate host is humans, fish, squid

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52
Q

what the disease caused by Anisakis simplex

A

Anisakiasis, larval worm attaches to the stomach, esophagus and intestines

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53
Q

what type of worm is Trichinella spiralis

A

a round worm

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54
Q

what is the mode of transmission for Trichinella spiralis

A

eating pork with encysted larvae, also found in bear, boar and horse

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55
Q

what is the infective stage of Trichinella spiralis

A

encysted larvae

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56
Q

what is the definitive host of Trichinella spiralis

A

the definitive host is the human

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57
Q

what is the definitive host of Trichinella spiralis

A

the definitive host is the human, it invades the small intestine, muscle, heart and lungs

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58
Q

what is the intermediate host of Trichinella spiralis

A

the intermediate host is a pig

59
Q

what is a characteristic of the Trichinella spiralis

A

it is spiral shaped, pink in color

60
Q

what type of worms are separate sexes?

A

round worms/nematodes

61
Q

what type of worms do not have hooks or suckers to attach to their hosts

A

round worms/nematodes

62
Q

what type of worm is the Taenia solium

A

its a tapeworm/ cestode

63
Q

what is the mode of transport of the Taenia solium

A

eating undercooked pork that has the cysticerci

64
Q

what is the infective stage of the Taenia solium

A

cysticerci (encysted larvae)

65
Q

what is the definitive host of the Taenia solium

A

the human

66
Q

what is the intermediate host of the Taenia solium

A

the pig

67
Q

what is the disease caused by Taenia solium

A

Taeniasis, the pork tapeworm, 50 million cases world wide, cysticercosis causes seizures

68
Q

what type of worm is the Taenia saginata

A

it is a tapeworm/cestode

69
Q

what is the mode of transportation for the Taenia saginata

A

eating undercooked beef with the cysticerci in it

70
Q

what is the infective stage of the Taenia saginata

A

the cysticerci (encysted larvae)

71
Q

what is the definitive host of the Taenia saginata

A

the human

72
Q

what is the intermediate host of the Taenia saginata

A

the cattle

73
Q

what is the disease caused by Taenia saginata

A

Taeniasis, intestinal infection, beef tapeworm, 50 million cases world wide

74
Q

what is the reproductive structure of the Taenia saginata

A

the proglotids

75
Q

what type of worm is the Diphyllobothrium latum

A

its a tapeworm/ cestode

76
Q

what is the mode of transmission for the Diphyllobothrium latum

A

eating undercooked fish with the cysticerci

77
Q

what is the infective stage of the Diphyllobothrium latum

A

the cysticerci

78
Q

what is the definitive host of the Diphyllobothrium latum

A

the human

79
Q

what is the intermediate host of the Diphyllobothrium latum

A

the fish

80
Q

what is the disease caused by Diphyllobothrium latum

A

fish tapeworm, 20 million cases per year

81
Q

how is the Diphyllobothrium latum transmitted

A

by the water flea, eaten by the fish, larvae develops in the fish, humans eat the fish

82
Q

what type of worm is the Dracunculus medinensis

A

a round worm/ nematode

83
Q

what is the mode of transport of the Dracunculus medinensis

A

drinking water with Cyclops(crustacean) or water flea

84
Q

what is the infective stage of Dracunculus medinensis

A

the larvae

85
Q

what is the vector of the Dracunculus medinensis

A

the Cyclops

86
Q

what is the definitive host of the Dracunculus medinensis

A

the human

87
Q

what is the intermediate host of the Dracunculus medinensis

A

the Cyclops

88
Q

what is the disease caused by Dracunculus medinensis

A

Guinea worm, travels to the arms and feet, forms a blister, worm comes out

89
Q

what type of worm is the Onchocerca volvulus

A

a nematode/roundworm

90
Q

what is the mode of transport for the Onchocerca volvulus

A

the bite of a black fly

91
Q

what is the infective stage of the Onchocerca volvulus

A

microfilariae, L3 larvae

92
Q

what is the vector for the Onchocerca volvulus

A

black fly or buffalo gnat

93
Q

what is the definitive host of the Onchocerca volvulus

A

the human

94
Q

what is the intermediate host of the Onchocerca volvulus

A

the black fly

95
Q

what is the disease caused by the Onchocerca volvulus

A

onchocerciasis or River Blindness

96
Q

what type of worm is Wuchereria bancrofti

A

a nematode/round worm

97
Q

what is the mode of transport for Wuchereria bancrofti

A

mosquito bite

98
Q

what is the infective stage of the Wuchereria bancrofti

A

microfilariae/ L3 stage

99
Q

what is the vector of the Wuchereria bancrofti

A

mosquito

100
Q

what is the definitive host of the Wuchereria bancrofti

A

human

101
Q

what is the intermediate host of the Wuchereria bancrofti

A

mosquito

102
Q

what is the disease caused by the Wuchereria bancrofti

A

lymphatic filariasis/ elephantiasis

103
Q

what type of worm is the Anisakis simplex

A

nematode/roundworm

104
Q

what is the most of transmission of the Anisakis simplex

A

eating uncooked/ infected fish

105
Q

what is the infective stage of the Anisakis simplex

A

L3 larvae stage

106
Q

what is the definitive host for the Anisakis simplex

A

the marine mammal

107
Q

what is the intermediate host for the Anisakis simplex

A

the human, fish, squid

108
Q

what is the disease caused by the Anisakis simplex

A

it embeds in the esophagus, intestines, throat

109
Q

what type of worm is Loa loa

A

it is a round worm/ nematode

110
Q

what is the mode of transmission for Loa loa

A

mangofly/ chrysopfly

111
Q

what is the infective stage of Loa loa

A

microfilariae or L3 larvae

112
Q

what is the vector for Loa loa

A

mango fly

113
Q

what is the definitive host for Loa loa

A

human

114
Q

what is the intermediate host of Loa loa

A

mango fly

115
Q

what is the disease caused by Loa loa

A

African eye worm

116
Q

what type of worm is the Echinococcus granulosus

A

cestode/tapeworm

117
Q

what is the mode of transmission for the Echinococcus granulosus

A

ingest egg/ ova

118
Q

what is the host of the Echinococcus granulosus

A

the canine

119
Q

what is the intermediate host of the Echinococcus granulosus

A

human, sheep, cattle

120
Q

what is the disease caused by the Echinococcus granulosus

A

hydatid cysts disease, infects the liver or lungs, 2-3 millions cases a year

121
Q

What type of worm is the clonorchis sinensis

A

It’s a Trematoda/fluke

122
Q

What is the mode of transmission for the clonorchis sinensis

A

Eating fish with the metacercaria

123
Q

What is the infective stage for clonorchis sinensis

A

Metacercaria

124
Q

Who is the definitive host in clonorchis sinensis

A

The human is the definitive host

125
Q

Who is the intermediate host in clonorchis sinensis

A

Snail or fish is the intermediate host

126
Q

What is the disease caused by clonorchis sinensis

A

Chinese liver fluke 600 million infected

127
Q

what type of worm is Paragonimus westermani

A

it is a trematodes/ fluke

128
Q

what is the mode of transmission for Paragonimus westermani

A

the mode of transmission for Paragonumus westermani is eating crabs with the metacercaria

129
Q

what is the infective stage of the Paragonimus westermani

A

the metacercaria

130
Q

what is the definitive host of the Paragonimus westermani

A

the definitive host for Paragonimus westermani is the human

131
Q

who is the intermediate host for the Paragonimus westermani

A

the snail, crab is the intermediate host for the Paragonimus westermani

132
Q

what is the disease caused by Paragonimus westermani

A

the lung fluke infection, 600 million infected

133
Q

what type of worm is the fasciola hepatica

A

a trematode/fluke

134
Q

what is the mode of transmission for fasciola hepatica

A

the mode of transmission for fasciola hepatica is eating vegetation with the metacercaria

135
Q

what is the infective stage for the fasciola hepatica

A

the infective stage for the fasciola hepatica is the metacercaria

136
Q

what is the definitive host for the fasciola hepatica

A

the definitive host is a human or a sheep

137
Q

what is the intermediate host for the Fasciola hepatica

A

the intermediate host is the snail

138
Q

what is the disease caused by fasciola hepatica

A

sheep liver fluke, 600 million infected

139
Q

what type of worm is Schistosoma spp

A

the Schistosoma is a trematode/fluke

140
Q

what is the mode of transmission for schistosoma spp

A

cercaria penetrate skin

141
Q

what is the infective stage of the Schistosoma

A

the infective stage of the Schistosoma is the cercaria

142
Q

what is the definitive host for the schistosoma spp.

A

the human is the definitive host for the Schistosoma spp.

143
Q

what is the intermediate host for the Schistosoma spp

A

the fresh water snail

144
Q

what is the disease caused by the Schistosoma spp

A

Schistosomisis blood fluke

Microbiology lab (12 decks)

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