parasitology final Flashcards
(95 cards)
1
Q
Fasciola hepatica
common name
hosts
predilection site
A
liver fluke
d: herbivores
i: lymnaeid snails
bile duct
2
Q
Paragonimus kelicotti
common name
hosts
predilection site
A
lung fluke
d: mink dog cat
i: slender walker snail then crayfish
lungs
3
Q
Dicroceoelium dendriticum
common name
hosts
predilection site
A
d: mammals
i: terrestrial snails then ants
gallbladder
4
Q
Heterobilharzia americana
common name
hosts
predilection site
A
schistosome
d: racoons dogs cats
i: lymnaeid snails
mesenteric vein
5
Q
Fascioloides magna
common name
hosts
predilection site
A
giant liver fluke
d: deer
dead end: moose elk sheep
i: aquatic snail
liver
6
Q
Taenia hydatigena
hosts
predilection site
A
d: canids
i: ruminants and swine
small intestine
7
Q
Taenia taeniaeformis
hosts
predilection site
A
d: felids
i: rodents and rabbits
small intestine
8
Q
Taenia pisiformis
hosts
predilection site
A
d: canids
i: rabbits and hares
small intestine
9
Q
Echinococcus granulosus
hosts
predilection site
A
d: canids
i: ruminants pigs camelids equids
small intestine
10
Q
Dipylidium caninum
hosts
predilection site
A
d: canids and felids
i: fleas
small intestine
11
Q
Moniezia expansa
hosts
predilection site
A
d: sheep and goats
i: oribatid mite
small intestine
12
Q
Moniezia benedeni
hosts
predilection site
A
d: cattle
i: orbatid mite
small intestine
13
Q
Thysanosoma actinioides
hosts
predilection site
A
d: sheep and goats
bile and pancreatic duct
14
Q
Anoplocephala perfoliata
hosts
predilection site
A
d: equids
i: mite
cecum
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
16
Q
Spirometra mansonoides
hosts
predilection site
A
d: cattle and felids
i: copepod then non-fish vertebrate
small intestine
17
Q
Ascaris suum
hosts
predilection site
A
d: swine and humans
small intestine
18
Q
Parascaris equorum
hosts
predilection site
A
d: equids
small intestine
19
Q
Toxocara canis
hosts
predilection site
A
d: canids
small intestine
20
Q
Toxocara cati
hosts
predilection site
A
d: felids
small intestine
21
Q
Ascaridia galli
hosts
predilection site
A
d: birds
small intestine mucosa (larvae) then lumen (adults)
22
Q
Heterakis gallinarum
hosts
predilection site
A
d: galliform birds
small intestine
23
Q
Oxyuris equi
common name
hosts
predilection site
A
pinworms
d: equids
descending colon crypts (larvae) lumen (adults)
24
Q
Trichuris vulpis
common name
hosts
predilection site
A
whipworms
d: canids
small intestine mucosa (larvae) cecum and colon (adults)
25
Trichuris suis
common name
hosts
predilection site
whipworms
d: swine
small intestine mucosa (larvae) cecum and colon (adults)
26
Trichinella spiralis
hosts
predilection site
d: mammals
skeletal muscle (pre-larvae) small intestine mucosa (adults)
27
Trichostrongylus axei
hosts
predilection site
d: hoofstock
abomasum or stomach
28
Ostertagia ostertagi
hosts
predilection site
d: cattle
abomasum glands (larvae) lumen (adult)
29
Teladorsagia circumcincta
hosts
predilection site
d: sheep and goats
abomasum
30
Haemonchus contortus
common name
hosts
predilection site
barber pole worm
d: ruminants
abomasum
31
Cooperia punctata
hosts
predilection site
d: cattle
small intestine
32
Hyostryongylus rubidus
common name
hosts
predilection site
red stomach worm
d: swine
stomach
33
Dictyocaulus viviparus
common name
hosts
predilection site
lung worm
d: ruminants
bronchial tree
34
Strongylus vulgaris
common name
hosts
predilection site
large strongyle
d: equids
tunic intima of mesenteric artery (larvae) colon and cecum (adult)
35
Cyanthostomins
common name
hosts
predilection site
small strongyles
d: equids
colon and cecum
36
Oesophagostomum spp.
hosts
predilection site
d: ruminants and swine
intestinal mucosa (larvae) large intestine lumen (adults)
37
Stephanurus dentatus
common name
hosts
predilection site
swine kidney worm
d: swine
p: earthworm
renal and perirenal tissue
38
Syngamid trachea
common name
hosts
predilection site
gapeworm
d: galliform birds
p: earthworm mollusk larval flies
small intestine / liver (larvae) upper res tract (adults)
39
Ancylostoma cannis
common name
hosts
predilection site
hookworm
d: canids
encyst in skeletal muscle and small intestine wall
40
Ancylostoma tubaeforme
common name
hosts
predilection site
hookworm
d: felids
small intestine
41
Ancylostoma braziliense
common name
hosts
predilection site
hookworm
d: canids and felids
small intestine
42
Bunostomum phlebotomum
common name
hosts
predilection site
hookworm
d: cattle
small intestine
43
Protostrongylus rufescens
hosts
predilection site
d: sheep and goats
i: gastropod
resp system
44
Mullerius capillaris
hosts
predilection site
d: sheep and goats
i: gastropod
resp system
45
Aelurostrongylus abstrusus
hosts
predilection site
d: canids and felids
i: gastropod
alveoli (larvae) bronchioles and alveolar ducts (adults)
46
Crenosoma vulpis
hosts
predilection site
d: canids and felids
i: gastropods
bronchi and bronchioles
47
Filaroides osleri
hosts
predilection site
d: canids
trachea and bronchi
48
Filaroides hirthi
hosts
predilection site
d: canids
alveoli and bronchioles
49
Strongyloides stercoralis
common name
hosts
predilection site
threadworm
d: canids felids humans and other primates
small intestine
50
Physaloptera spp.
hosts
predilection site
d: most animals
i: insects
stomach
51
Thelazia spp.
common name
hosts
predilection site
eye worms
d: horses and cattle
i: flies
conjunctival sac lacrimal glands and ducts
52
Habronema muscae
hosts
predilection site
d: equids
i: housefly and stable fly
stomach
53
Spirocerca lupi
hosts
predilection site
d: canids
i: beetles
thoracic aorta (larvae) esophagus (adults)
54
Oncocerca cervicalis
common name
hosts
predilection site
equine neck threadworm
d: equids
i: midges
nuchal ligament
55
Oncocerca lupi
hosts
predilection site
d: canids
i: black flies
dermis (microfilariae) periocular nodules (adults)
56
Dirofilaria immitis
common name
hosts
predilection site
heartworm
d: canids
i: mosquitoes
pulmonary arteries
57
Parelaphostrongylus tenuis
common name
hosts
predilection site
brain worm
d: white tailed deer
i: snails and slugs
dead end: moose elk caribou llama sheep goats
brain
58
Dermacentor albipictus
common name
hosts
predilection site
winter tick
d: mammals
skin
59
Fasciola hepatica life cycle
Eggs shed in feces -> mature into miracidia in water -> infect snails -> exit as free swimming cercariae -> encyst on vegetation -> ingested by definitive host
60
Paragonimus kellicotti life cycle
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
Dicrocoelium dendriticum life cycle
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
Heterobilharzia americana life cycle
Eggs shed in feces -> mature into miracidia in water -> infect snails -> exit as free swimming cercariae -> penetrate skin of definitive host
63
Taenia hydatigena life cycle
Proglottids shed in feces -> release eggs -> ingested by intermediate host -> ingested by definitive host
64
Taenia taeniaeformis life cycle
Eggs shed in feces -> ingested by intermediate host -> metacestodes form on liver -> ingested by definitive host
65
Taenia pisiformis life cycle
Eggs shed in feces -> ingested by intermediate host -> metacestodes form on peritoneal membranes or liver -> ingested by definitive host
66
Echinococcus granulosus life cycle
Eggs shed in feces -> ingested by intermediate host -> hydatid cysts (metacestodes) form on liver -> ingested by definitive host
67
Dipylidium caninum life cycle
Proglottids shed in feces -> release eggs -> ingested by intermediate host -> metacestodes form in body cavity -> ingested by definitive host
68
Moniezia expansa life cycle
Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host
69
Moniezia benedeni life cycle
Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host
70
Anoplocephala perfoliata life cycle
Eggs shed in feces -> ingested by mite -> shed by mite -> ingested by definitive host
71
Dibothriocephalus latus life cycle
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
Spirometra mansonoides life cycle
Eggs shed in feces -> coracidium hatch in water-> ingested by copepod -> ingested by 2nd intermediate host and forms metacestodes -> ingested by definitive host
73
Basic roundworm life cycle
Eggs shed in feces -> develop into L3 larvae in the environment -> ingestion of egg by definitive host
74
Toxocara canis life cycle
L3 larvae cross the placenta and infect pups -> developmental arrest in L3 -> reactivate once pup born
75
Oxyuris equi life cycle
Female parasite 'glues' egg masses to perianal skin -> flakes of adhesive and eggs infect the environment -> ingested by definitive host
76
Trichinella spiralis life cycle
Encysted larvae ingested by new host -> enter SI and develop into adults -> produce pre larvae which migrate through tissue to skeletal muscle
77
Dictyocaulus viviparus life cycle
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
Syngamid trachea life cycle
Eggs shed in feces -> develop into L3 free living or in egg -> definitive host ingests L3 larvae/egg or paratenic host
79
Basic hookworm life cycle
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
Basic lungworm life cycle
Shed in feces -> ingested by gastropod -> develops into L3 larvae -> ingested by definitive host
81
Fiaroides spp. life cycle
Shed in feces and vomit -> ingestion of infective L1 larvae -> penetrate SI and enter blood stream to get to lungs
82
Strongyloides stercoralis life cycle
Eggs or L1 shed in feces -> develop into either infective L3 or free living adults -> ingestion or skin penetration with L3
83
Thelazia spp. and Habronema muscae life cycle
L3s emerge from feeding part of fly and enter the host eye
84
Oncocerca spp. and Dirofilaria immitus life cycle
Biting fly ingests microfilariae -> develop into L3 in fly -> L3 transfered through mouthpart
85
what overarching factors are affecting moose populations in Minnesota and other parts of North America?
disease
heat stress
over-predation
capture myopathy
climate change
86
what are the three parasites that are collectively contributing to poor moose health and population declines?
D. albipictus (tick)
F. magna (fluke)
P. tenuis (roundworm)
87
what ectoparasite causes significant blood loss, coat thinning, weight loss, and affects moose, elk, deer, cattle
D. albipictus
88
what fluke causes liver disease, peritonitis and affects deer, elk, moose, and sheep
F. magna
89
what roundworm species causes progressive CNS disease and affects species deer, moose, llama
P. tenuis
90
lifecycle of D. albipictus? and why are they not commonly involved in disease transmission?
-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
lifecycle of F. magna and what are the common clinical signs
-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
life cycle of P. tenuis in various host? what are common clinical signs in moose?
-deer are definitive host with limited clinical signs
-moose and llamas are dead-end hosts, neurologic disease
93
where is P. tenuis found and what is the intermediate host?
east of Mississippi River
intermediate host: snail/slug
94
what is the causative agent for FIE and what are the pathologic findings?
cuterebra spp
gross observance of cuterebra
eosinophilic meningitis
95
