Chapter 10: The Cestodes Flashcards

1
Q

Which stage of Taenia saginata is usually infective for humans?

A

Cysticercus larva

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2
Q

The best direct diagnosis of Echinococcus granulosus infection in humans is made by identification of:

A

Hydatid cysts in tissue

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3
Q

The flukes and tapeworms parasitic in man belong to the phylum:

A

Platyhelminthes

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4
Q

What is the scientific name of Pork Tapeworm?

A

Taenia solium

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5
Q

What is the scientific name of Fish Tapeworm?

A

Diphyllobothrium latum

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6
Q

What is the scientific name of Beef Tapeworm?

A

Taenia saginata

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7
Q

What is the scientific name of Dwarf Tapeworm?

A

Hymenolepis nana

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8
Q

A tapeworm having small, pumpkin-seed segments with one genital pore on each other margin is:

A

Dipylidium caninum

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9
Q

Dipylidium caninum infection is acquired by accidental ingestion of:

A

Infected fleas

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10
Q

This is the larval form of Taenia spp.

A

Csyticerus

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11
Q

Head of a tapeworm

A

Scolex

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12
Q

Hexacanth embryo

A

Oncosphere

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13
Q

Acquired from animals

A

Zoonotic

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14
Q

Free-swimming larva of D. latum

A

Coracidium

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15
Q

Segment of a tapeworm

A

Proglottid

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16
Q

Develops from a procercoid larva

A

Sparganosis

17
Q

Contains both male and female organs

A

Hermaphroditic

18
Q

Series of proglottids

A

Strobila

19
Q

Smaller cyst within a hydatid cyst

A

Brood capsule

20
Q

The infective stage of H. diminuta for humans:

A

Cysticercoid larva

21
Q

A primary differential feature between an H. nana egg and H. diminuta egg is:

A

Polar filaments in H. nana egg

22
Q

The characteristics of the life cycle of H. nana that differentiates it from the other cestodes is:

A

Lack of an intermediate host

23
Q

The egg of D. latum is unique among the cestodes in that it contains:

A

An operculum and terminal knob