RVT- Cestodes Flashcards

1
Q

What is the intermediate host for the dipylidium caninum?

What is the definitive host?

A

Definitive host - dogs and cats

Intermediate host - flea

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2
Q

What are the 2 common names of Dipylidium caninum?

A

Cucumber seed tapeworm

Double pored tapeworm

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3
Q

What 2 tapeworms are considered pseudotapeworms?

A

Diphyllobothrium latum

Spirometra

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4
Q

What is the common name of the Diphyllobothrium latum?

A

Broad fish tapeworm

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5
Q

What is the common name of the Spirometra?

A

Zipper tapeworm

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6
Q

What tapeworm causes ‘Sheep measles?’

A

Taenia Ovis

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7
Q

What is the common drug used to treat tapeworm infections in dogs and cats?

A

Praziquantel

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8
Q

What are the definitive and intermediate hosts of Taenia taeniaformis?

A

Definitive - Cat

Intermediate- rodent

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9
Q

What are the differences between true tapeworms and pseudotapeworms?

A

Pseudo- Lack acetabula ( have bothria instead)
Sex organs centally located in pseudo, laterally on true
Pseudo - more complicated life cycle

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10
Q

What are acetabula?

A

Means ‘depression’

Suckers used to hold on to lining of the intestines

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11
Q

There are 3 types of proglottids, what are they and what do they do?

A

Immature- youngest, closest to neck
Mature - located mid-body
Gravid- end/tail

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12
Q

What are the difference between armed and unarmed tapeworms?

A

Armed have rostellum

Unarmed do not

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13
Q

What are the definitive and intermediate hosts of Echinococcus multilocularis and Echinococcus granulosis?

A

E. multilocularis - Definitive host - dogs and cats
Intermediate host- rodents ( hydatid cysts)
E. granulosis- Definitive host - dogs and cats
Intermediate host - rodents ( hydatid cysts)

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14
Q

Which of the tapeworm species has a high pathogenicity for humans?

A

Echinococcus - cystic and alveolar hydatid disease

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15
Q

What is the lifecycle of the pseudotapeworm?

A

2 intermediate hosts
1st- copopod
2nd- fish

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16
Q

What is tegument?

A

Body wall of tapeworm

How the worm absorbs nutrients

17
Q

What is an operculum?

A

An anatomical feature resembling a lid or small door that opens and closes on end of parasite egg.

18
Q

Are cestodes hermaphroditic?

A

Yes.

19
Q

What true tapeworm has 2 intermediate hosts?

A

Mesocestoides
1st- mite
2nd- mammal/bird/reptile

20
Q

What is the definitive and intermediate host of Taenia pisiformis?

A

Definitive host - dog

Intermediate host - rabbit