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Elsevier Parasitology (RVSP) > 4. Cestodes > Flashcards

4. Cestodes Flashcards

1
Q

Broadfish tapeworm

A

Diphyllobothrium latum

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2
Q

IS of D. latum

A

Plerocercoid/sparganum/ova

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3
Q

DS of D. latum

A

Ova

Proglottids (rarely)

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4
Q

Has eggs that do not contain the normal hexacanth embryo of other cestodes

A

D. latum

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5
Q

Instead of hexacanth embryo inside D. latum eggs, it contains

A

Coracidium

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6
Q

Scolex: almond-shaped with 2 long sucking grooves (bothria)

A

D. latum

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7
Q

Cestode that may cause pernicous anemia

A

D. latum

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8
Q

Dwarf tapeworm

A

Hymenolepis nana

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9
Q

IS of H. nana

A

Ova

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10
Q

DS for H. nana

A

Ova

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11
Q

Compare H. nana and H. diminuta in terms of their scolices

A

H. nana: 4 suckers, short rostellum with hooks

H. diminuta: 4 suckers, small projecting rostellum without hooks

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12
Q

Rat tapeworm

A

Hymenolepis diminuta

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13
Q

IS of H. diminuta

A

Ova

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14
Q

DA of H. diminuta

A

Ova

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15
Q

Compare H. nana and H. diminuta in terms of their ova

A

H. nana: round, hexacanth embryo with 3 pairs of hooklets, shell with bipolar thickenings and filaments

H. diminuta: round, hexacanth embryo with 3 pairs of hooklets, shell with bipolar thickenings but NO filaments

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16
Q

Primary host of H. diminuta

A

Rat

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17
Q

Cestodes that may not require intermediate hosts

A

H. nana

H. diminuta

18
Q

Sunburst appearance ova

A

Taenia spp.

19
Q

DS for Taenia spp.

A

Ova

Proglottids (rarely)

20
Q

Beef tapeworm

A

Taenia saginata

21
Q

Pork tapeworm

A

Taenia solium

22
Q

Compare T. saginata and T. solium proglottids

A

T. saginata: >1000, rectangular, 15-30 uterine branches

T. solium:

23
Q

Compare T. saginata and T. solium scolices

A

T. saginata: 1-2 mm, 4 suckers (unarmed)

T. solium: 1-2 mm, 4 suckers, rostellum, and hooks (armed)

24
Q

IS of T. solium

A

Cysticercus cellulosae

25
IS of T. saginata
Cysticercus bovis
26
Causes cysticercosis
T. solium
27
When can cysticercosis happen?
When infective ovum of T. solium is ingested
28
Dog or cat tapeworm
Dipylidium caninum
29
Double-pored dog tapeworm
Dipylidium caninum
30
DS of D. caninum
Egg packets | Proglottids
31
IS of D. caninum
Cysticercoid larva
32
Seed-shaped proglottids
D. caninum
33
Primary host of D. caninum
Dog/cat
34
IH of D. caninum
Flea
35
Hydatid tapeworm
Echinococcus granulosus
36
Dog tapeworm
Echinococcus granulosus
37
DS of E. granulosus
Hydatid cyst fluid
38
Ova of E. granulosus is identical to
Taenia spp. ova
39
Has only 3 proglottids
E. granulosus Immature, mature, and gravid proglottids
40
IH of E. granulosus
Sheep
41
AKA cestodes
Tapeworms

Elsevier Parasitology (RVSP) (10 decks)

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