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parasitology > parasitology final > Flashcards

parasitology final Flashcards

1
Q

Fasciola hepatica
common name
hosts
predilection site

A

liver fluke
d: herbivores
i: lymnaeid snails
bile duct

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2
Q

Paragonimus kelicotti
common name
hosts
predilection site

A

lung fluke
d: mink dog cat
i: slender walker snail then crayfish
lungs

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3
Q

Dicroceoelium dendriticum
common name
hosts
predilection site

A

d: mammals
i: terrestrial snails then ants
gallbladder

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4
Q

Heterobilharzia americana
common name
hosts
predilection site

A

schistosome
d: racoons dogs cats
i: lymnaeid snails
mesenteric vein

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5
Q

Fascioloides magna
common name
hosts
predilection site

A

giant liver fluke
d: deer
dead end: moose elk sheep
i: aquatic snail
liver

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6
Q

Taenia hydatigena
hosts
predilection site

A

d: canids
i: ruminants and swine
small intestine

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7
Q

Taenia taeniaeformis
hosts
predilection site

A

d: felids
i: rodents and rabbits
small intestine

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8
Q

Taenia pisiformis
hosts
predilection site

A

d: canids
i: rabbits and hares
small intestine

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9
Q

Echinococcus granulosus
hosts
predilection site

A

d: canids
i: ruminants pigs camelids equids
small intestine

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10
Q

Dipylidium caninum
hosts
predilection site

A

d: canids and felids
i: fleas
small intestine

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11
Q

Moniezia expansa
hosts
predilection site

A

d: sheep and goats
i: oribatid mite
small intestine

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12
Q

Moniezia benedeni
hosts
predilection site

A

d: cattle
i: orbatid mite
small intestine

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13
Q

Thysanosoma actinioides
hosts
predilection site

A

d: sheep and goats
bile and pancreatic duct

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14
Q

Anoplocephala perfoliata
hosts
predilection site

A

d: equids
i: mite
cecum

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15
Q

Dibothriocephalus latus
hosts
predilection site

A

d: piscivorous mammals
i: copepod then small fish may enter larger fish as paratenic host
small intestine

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16
Q

Spirometra mansonoides
hosts
predilection site

A

d: cattle and felids
i: copepod then non-fish vertebrate
small intestine

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17
Q

Ascaris suum
hosts
predilection site

A

d: swine and humans
small intestine

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18
Q

Parascaris equorum
hosts
predilection site

A

d: equids
small intestine

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19
Q

Toxocara canis
hosts
predilection site

A

d: canids
small intestine

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20
Q

Toxocara cati
hosts
predilection site

A

d: felids
small intestine

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21
Q

Ascaridia galli
hosts
predilection site

A

d: birds
small intestine mucosa (larvae) then lumen (adults)

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22
Q

Heterakis gallinarum
hosts
predilection site

A

d: galliform birds
small intestine

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23
Q

Oxyuris equi
common name
hosts
predilection site

A

pinworms
d: equids
descending colon crypts (larvae) lumen (adults)

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24
Q

Trichuris vulpis
common name
hosts
predilection site

A

whipworms
d: canids
small intestine mucosa (larvae) cecum and colon (adults)

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25
Q

Trichuris suis
common name
hosts
predilection site

A

whipworms
d: swine
small intestine mucosa (larvae) cecum and colon (adults)

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26
Q

Trichinella spiralis
hosts
predilection site

A

d: mammals
skeletal muscle (pre-larvae) small intestine mucosa (adults)

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27
Q

Trichostrongylus axei
hosts
predilection site

A

d: hoofstock
abomasum or stomach

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28
Q

Ostertagia ostertagi
hosts
predilection site

A

d: cattle
abomasum glands (larvae) lumen (adult)

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29
Q

Teladorsagia circumcincta
hosts
predilection site

A

d: sheep and goats
abomasum

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30
Q

Haemonchus contortus
common name
hosts
predilection site

A

barber pole worm
d: ruminants
abomasum

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31
Q

Cooperia punctata
hosts
predilection site

A

d: cattle
small intestine

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32
Q

Hyostryongylus rubidus
common name
hosts
predilection site

A

red stomach worm
d: swine
stomach

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33
Q

Dictyocaulus viviparus
common name
hosts
predilection site

A

lung worm
d: ruminants
bronchial tree

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34
Q

Strongylus vulgaris
common name
hosts
predilection site

A

large strongyle
d: equids
tunic intima of mesenteric artery (larvae) colon and cecum (adult)

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35
Q

Cyanthostomins
common name
hosts
predilection site

A

small strongyles
d: equids
colon and cecum

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36
Q

Oesophagostomum spp.
hosts
predilection site

A

d: ruminants and swine
intestinal mucosa (larvae) large intestine lumen (adults)

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37
Q

Stephanurus dentatus
common name
hosts
predilection site

A

swine kidney worm
d: swine
p: earthworm
renal and perirenal tissue

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38
Q

Syngamid trachea
common name
hosts
predilection site

A

gapeworm
d: galliform birds
p: earthworm mollusk larval flies
small intestine / liver (larvae) upper res tract (adults)

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39
Q

Ancylostoma cannis
common name
hosts
predilection site

A

hookworm
d: canids
encyst in skeletal muscle and small intestine wall

40
Q

Ancylostoma tubaeforme
common name
hosts
predilection site

A

hookworm
d: felids
small intestine

41
Q

Ancylostoma braziliense
common name
hosts
predilection site

A

hookworm
d: canids and felids
small intestine

42
Q

Bunostomum phlebotomum
common name
hosts
predilection site

A

hookworm
d: cattle
small intestine

43
Q

Protostrongylus rufescens
hosts
predilection site

A

d: sheep and goats
i: gastropod
resp system

44
Q

Mullerius capillaris
hosts
predilection site

A

d: sheep and goats
i: gastropod
resp system

45
Q

Aelurostrongylus abstrusus
hosts
predilection site

A

d: canids and felids
i: gastropod
alveoli (larvae) bronchioles and alveolar ducts (adults)

46
Q

Crenosoma vulpis
hosts
predilection site

A

d: canids and felids
i: gastropods
bronchi and bronchioles

47
Q

Filaroides osleri
hosts
predilection site

A

d: canids
trachea and bronchi

48
Q

Filaroides hirthi
hosts
predilection site

A

d: canids
alveoli and bronchioles

49
Q

Strongyloides stercoralis
common name
hosts
predilection site

A

threadworm
d: canids felids humans and other primates
small intestine

50
Q

Physaloptera spp.
hosts
predilection site

A

d: most animals
i: insects
stomach

51
Q

Thelazia spp.
common name
hosts
predilection site

A

eye worms
d: horses and cattle
i: flies
conjunctival sac lacrimal glands and ducts

52
Q

Habronema muscae
hosts
predilection site

A

d: equids
i: housefly and stable fly
stomach

53
Q

Spirocerca lupi
hosts
predilection site

A

d: canids
i: beetles
thoracic aorta (larvae) esophagus (adults)

54
Q

Oncocerca cervicalis
common name
hosts
predilection site

A

equine neck threadworm
d: equids
i: midges
nuchal ligament

55
Q

Oncocerca lupi
hosts
predilection site

A

d: canids
i: black flies
dermis (microfilariae) periocular nodules (adults)

56
Q

Dirofilaria immitis
common name
hosts
predilection site

A

heartworm
d: canids
i: mosquitoes
pulmonary arteries

57
Q

Parelaphostrongylus tenuis
common name
hosts
predilection site

A

brain worm
d: white tailed deer
i: snails and slugs
dead end: moose elk caribou llama sheep goats
brain

58
Q

Dermacentor albipictus
common name
hosts
predilection site

A

winter tick
d: mammals
skin

59
Q

Fasciola hepatica life cycle

A

Eggs shed in feces -> mature into miracidia in water -> infect snails -> exit as free swimming cercariae -> encyst on vegetation -> ingested by definitive host

60
Q

Paragonimus kellicotti life cycle

A

Eggs shed in feces -> mature into miracidia in water -> infect snails -> exit as free swimming cercariae -> infect crawfish and encyst as metacercariae -> ingested by definitive host

61
Q

Dicrocoelium dendriticum life cycle

A

Eggs shed in feces -> eggs ingested by snails -> exit as cercariae in slime ball-> ingested by ants and encyst as metacercariae -> ingested by definitive host

62
Q

Heterobilharzia americana life cycle

A

Eggs shed in feces -> mature into miracidia in water -> infect snails -> exit as free swimming cercariae -> penetrate skin of definitive host

63
Q

Taenia hydatigena life cycle

A

Proglottids shed in feces -> release eggs -> ingested by intermediate host -> ingested by definitive host

64
Q

Taenia taeniaeformis life cycle

A

Eggs shed in feces -> ingested by intermediate host -> metacestodes form on liver -> ingested by definitive host

65
Q

Taenia pisiformis life cycle

A

Eggs shed in feces -> ingested by intermediate host -> metacestodes form on peritoneal membranes or liver -> ingested by definitive host

66
Q

Echinococcus granulosus life cycle

A

Eggs shed in feces -> ingested by intermediate host -> hydatid cysts (metacestodes) form on liver -> ingested by definitive host

67
Q

Dipylidium caninum life cycle

A

Proglottids shed in feces -> release eggs -> ingested by intermediate host -> metacestodes form in body cavity -> ingested by definitive host

68
Q

Moniezia expansa life cycle

A

Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host

69
Q

Moniezia benedeni life cycle

A

Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host

70
Q

Anoplocephala perfoliata life cycle

A

Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host

71
Q

Dibothriocephalus latus life cycle

A

Eggs shed in feces -> coracidium released in water-> ingested by copepod -> ingested by small fish and forms metacestodes -> possible ingestion by paratenic host -> ingested by definitive host

72
Q

Spirometra mansonoides life cycle

A

Eggs shed in feces -> coracidium hatch in water-> ingested by copepod -> ingested by 2nd intermediate host and forms metacestodes -> ingested by definitive host

73
Q

Basic roundworm life cycle

A

Eggs shed in feces -> develop into L3 larvae in the environment -> ingestion of egg by definitive host

74
Q

Toxocara canis life cycle

A

L3 larvae cross the placenta and infect pups -> developmental arrest in L3 -> reactivate once pup born

75
Q

Oxyuris equi life cycle

A

Female parasite ‘glues’ egg masses to perianal skin -> flakes of adhesive and eggs infect the environment -> ingested by definitive host

76
Q

Trichinella spiralis life cycle

A

Encysted larvae ingested by new host -> enter SI and develop into adults -> produce pre larvae which migrate through tissue to skeletal muscle

77
Q

Dictyocaulus viviparus life cycle

A

Eggs hatch in lungs -> L1 coughed up and swallowed -> exit with the feces -> L3 ingested by definitive host -> penetrate intestinal wall -> L4 migrate in lymph to lungs

78
Q

Syngamid trachea life cycle

A

Eggs shed in feces -> develop into L3 free living or in egg -> definitive host ingests L3 larvae/egg or paratenic host

79
Q

Basic hookworm life cycle

A

Eggs shed in feces -> develop into L3 larvae in the environment -> ingested by paratenic host or go through host skin -> if in paratenic host encysts in tissues -> paratenic host ingested by definitive host

80
Q

Basic lungworm life cycle

A

Shed in feces -> ingested by gastropod -> develops into L3 larvae -> ingested by definitive host

81
Q

Fiaroides spp. life cycle

A

Shed in feces and vomit -> ingestion of infective L1 larvae -> penetrate SI and enter blood stream to get to lungs

82
Q

Strongyloides stercoralis life cycle

A

Eggs or L1 shed in feces -> develop into either infective L3 or free living adults -> ingestion or skin penetration with L3

83
Q

Thelazia spp. and Habronema muscae life cycle

A

L3s emerge from feeding part of fly and enter the host eye

84
Q

Oncocerca spp. and Dirofilaria immitus life cycle

A

Biting fly ingests microfilariae -> develop into L3 in fly -> L3 transfered through mouthpart

85
Q

what overarching factors are affecting moose populations in Minnesota and other parts of North America?

A

disease
heat stress
over-predation
capture myopathy
climate change

86
Q

what are the three parasites that are collectively contributing to poor moose health and population declines?

A

D. albipictus (tick)
F. magna (fluke)
P. tenuis (roundworm)

87
Q

what ectoparasite causes significant blood loss, coat thinning, weight loss, and affects moose, elk, deer, cattle

A

D. albipictus

88
Q

what fluke causes liver disease, peritonitis and affects deer, elk, moose, and sheep

A

F. magna

89
Q

what roundworm species causes progressive CNS disease and affects species deer, moose, llama

A

P. tenuis

90
Q

lifecycle of D. albipictus? and why are they not commonly involved in disease transmission?

A

-winter ticks are a “one host tick”, meaning they spend nearly their entire lives on a single host
-early developmental stages do not involve a host which is why it is not to be an important disease vector

91
Q

lifecycle of F. magna and what are the common clinical signs

A

-deer are the definitive host, with limited signs
-other ruminants are commonly dead-end hosts with more severe clinical signs including eosinophilia anemia, hepatitis
moose are dead end hosts

92
Q

life cycle of P. tenuis in various host? what are common clinical signs in moose?

A

-deer are definitive host with limited clinical signs
-moose and llamas are dead-end hosts, neurologic disease

93
Q

where is P. tenuis found and what is the intermediate host?

A

east of Mississippi River
intermediate host: snail/slug

94
Q

what is the causative agent for FIE and what are the pathologic findings?

A

cuterebra spp
gross observance of cuterebra
eosinophilic meningitis

95
Q
A

parasitology (6 decks)

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