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Parasitology > Cestodes and Trematodes > Flashcards

Cestodes and Trematodes Flashcards

1
Q

what are the cestode species

A

hymenoleptis nana, taenia saginata, taenia solium, echinococcus, diphyllobothrium latum

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2
Q

what are the trematodes

A

fasciola hepatica, paragonimus westermani, schistosoma mansoni, schistosoma japonica, schistosoma haematobbium

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3
Q

what is the phylum, class, order, family, genus, species of fasciola hepatica

A

platyhelmenthes, trematoda, echinostomata, fasciolidae, fasciola hepatica

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4
Q

what is the common name for fasciola hepatica

A

sheep liver fluke

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5
Q

where is fasciola hepatica prevalent

A

latin america, british isles, southeastern usa, africa, europe, china, south america bolivia

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6
Q

where does the adult fasciola hepatica live

A

bile ducts

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7
Q

what is the definitive host of fasciola hepatica

A

sheep (therefore zoonotic)

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8
Q

what is the disease name of fasciola hepatica

A

sheep liver rot, western liver fluke infection

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9
Q

what is the pathology of larvae of fasciola hepatica

A

feeds on liver tissue and cells of bile duct causing local irritation, ulcers in eye, brain, skin, and lungs

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10
Q

what is the pathology of adult fasciola hepatica

A

cirrhosis, tunnels and abscesses created in the liver, damage to gall bladder, nercrotic cell debris

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11
Q

what are symptoms of having fasciola hepatica

A

michanical irritation, bile duct obstruction, jaundice, anemia, fever, diarrhea, pruitus, urticaria, hepatomegaly, eosinophilia

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12
Q

fasciola hepatica is similar to which other parasite

A

fasciolopsis buski

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13
Q

what is the diagnostic stage of fasciola hepatica

A

the egg (recover eggs in feces)

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14
Q

what drugs to treat fasciola hepatica

A

bithionol or trichlabendazole

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15
Q

what is the phylum, class, order, family, genus, species of fasciolopis buski

A

platyhelmenthes, trematoda, echinostomata, fasciolodae, fasciolopis buski

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16
Q

how many eggs does f.buski produce per day

A

25,000 eggs per day

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17
Q

what kind of digestive system does f. buski have

A

blind gut

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18
Q

what is the common name for f. buski

A

large intestinal fluke

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19
Q

what is the resevoir host for f. buski

A

dog, sheep, rabbit

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20
Q

what is the disgnostic stage for f. buski

A

egg

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21
Q

where does f. buski live in the body

A

attached to columnar epithelium of small intestine

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22
Q

what is the disease name for f. buski

A

fasciolopsiasis

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23
Q

what is a heavy infection for f. buski

A

hundreds

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24
Q

what pathology does f. buski cause

A

bowel mucosal ulcers, hypersecretion and hemorrhage at attachment site, abstruction of vater, blockage of bile duct and small intestine

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25
what drug to treat f. buski
praziquantel
26
what is the phylum, class, order, family, genus, species of p. westermani
platyhelmenthes, trematoda, plagiorchiata, trogotrematidae, paragonimus westermani
27
what are the reservoir hosts of p. westermani
fox, civet, tiger, leopard, panther, mongoose, wolf, pig, dog, cat
28
where does p. westermani live
lives as pairs in lung tissue
29
where do immature p. westermani live in humans
brain, skin, liver
30
whats it called when p. westermani immature lives in the brain
cerebral paragonimiasis
31
whats the size of p. westermani
10-12mm x 5-7mm
32
whats the name of the disease p. westermani causes
paragonimiasis
33
what pathology does p. westermani cause
encyst in lungs rupturing bronchioles which can cause bronchitis and fibrosis and cerebral seizures
34
what is the diagnostic stage of p. westermani
egg FROM BLOOD SPUTUM (rusty iron filings)
35
where does s. japonicum live
bile ducts
36
where does s. mansoni live
bile ducts
37
where does s. haematobium live
urinary tract
38
what snail for s. japonicum
oncomelania
39
what snail for s. mansoni
biomphalaria
40
what snail for s. haematobium
bulinus
41
how many global infections for schistosomes
200-300 million (most are s. haematobium)
42
what is the diagnostic stage for schistosomes
egg
43
what is the disease name for having a schistosome
schistomiasis
44
what is the pathology for schistosomes
intestinal hepatic fibrosis, fibrosis of bladder
45
what drug can be used to treat schistosomiasis
praziquantel
46
what is the number one tapeworm in usa
hymenolepis nana (3%)
47
how can one get h. nana into their system
from consuming raw or undercooked flesh (mealworms)
48
what is the common name for h. nana
dwarf tapeworm
49
how do you diagnose possession of h. nana
eggs in stool
50
what does it mean that h. nana has a hexacanth embryo
3 pairs of hooklets can be seen in the embryo
51
what is the drug of choice for h. nana
praziquantel
52
what size can t. saginata grow to
10 meters
53
what is the common name for t. saginata
beef tapeworm
54
where is t. saginata endemic to
sub-saharan africa, northern mexico, middle europe
55
where does t. saginata live in the body
small intestine
56
what does t. saginata have on its scolex
4 suckers, no pair hooks
57
what is the diagnostic stage for t. saginata
eggs or in tact gravid proglottids
58
why are the uterine branches of t. saginata and t. solium dark
filled with eggs
59
is the tail or scolex larger on tapeworms
the tail is wider than the scolex
60
where is the highest prevalence of t. solium in usa
hispanic populations
61
how many lateral branches does t. saginata versus t. solium have
t. saginata has 15-30, t. solium has 7-12
62
what pathology can taenia cause
neurocysticercus
63
how can you tell taenia scolices apart from each other
saginata has no hooks, solium does
64
what kind of taenia can infect with larval forms
t. solium
65
what is the leading cause of epillepsy in children in the united states
tapeworm infections (mostly immigrants from latin america)
66
how do tapewoms cause seizures
when encysted in the brain they cause imflammation which causes seizures
67
what kind of tapeworm can migrate to the eyes
pork tapeworm (t.solium)
68
what drugs can be used to treat tapeworms
praziquantel, niclosamide, or treat the symptoms if encysted in the brain
69
what percentage of finnish and baltic are infected with d. latum
20% finnish, 100% baltic
70
how large can d. latum be
20 meters
71
what is the diagnostic stage of d. latum
non-embryonated eggs
72
what is the disease name of having d. latum
diphyllobothriasis, fish tapeworm infection, broadfish tapeworm infection
73
what pathology does d. latum cause
tissue plercoid if infected copepod ingested, intestinal obstruction, anemia, nervous system disturbances (eats b12)
74
where does d. latum live in the body
small intestine eating only b12
75
what is the disease name for having d. latum
diphyllobothriasis, fish tapeworm infection
76
what drug to treat for d. latum
praziquantel

Parasitology (4 decks)

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