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Parasitology II UNIVET > Cestodes - Tapeworms > Flashcards

Cestodes - Tapeworms Flashcards

1
Q
A

a,b: Dipylidium spp.

They have acetabuli and rostrellum, no bothridia
segments are apolytic

c,d: Diphyllobothrium spp.

They have bothridia, no acetabuli and rostrellum
last segments are anapoytic
Zoonotic

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2
Q
A

Diphyllobothrium spp.​

Segment’s anatomical structures

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3
Q
A

Mature proglottid

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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4
Q
A

Diphyllobothrium latum

Life cycle

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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5
Q
A

Diphyllobothrium latum

  1. Coracidium (L1)
  2. Oncosphere (L1 in other cestodes - NOT Diphyllobothrium)
  3. Procercoid (L2)
    1. Procercoid in Cyclops (Crustacean)
  5. Plerocercoid (L3) - infects Freshwater fish
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6
Q
A

Eggs

Diphyllobothrium latum

Collected with Sedimentation method

The eggs contain zygotes

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7
Q
A

Eggs

Diphyllobothrium latum

Collected with Sedimentation method

The eggs contain zygotes

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8
Q
A

Segments - Mature proglottids

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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9
Q
A

Mature proglottid

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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10
Q
A

Stained plerocercoid (L3) from fish

Diphyllobothrium latum

First Intermediate Host: Cyclops spp. - Crustacean (Procercoid)

Second Intermediate Host: Freshwater Predacious Fish (Plerocercoid)

Final Hosts: Fish-eating mammals, Humans

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11
Q
A

Moniezia spp.

They have acetabuli but no rostrellum, no bothrida
Segments are anapolytic

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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12
Q
A

Moniezia sp.

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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13
Q
A

Carmine-stained Scolex

Moniezia sp.

They have acetabuli but no rostrellum

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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14
Q
A

Scolex of Moniezia expansa

They have acetabuli but no rostrellum

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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15
Q
A

Immature proglottids

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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16
Q
A

Mature segments

Moniezia expansa

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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17
Q
A

Mature segments

Moniezia benedeni

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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18
Q
A

Mature segments

Moniezia expansa

2 set of genitalia in each segmetn with 2 openings

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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19
Q
A

Triangular eggs with oncosphere (L1)

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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20
Q
A

Triangular eggs

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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21
Q
A

Quadrangular eggs with oncosphere (L1)

Moniezia benedeni

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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22
Q
A

Quadrangular eggs

Moniezia benedeni

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

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23
Q
A

Moniezia Eggs

(+Eimeria eggs)

Collected by the Flotation method

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

24
Q
A

Box mite

Intermediate Host of Moniezia & Anoplocephala spp.

Infected by Cysticercoids

25
Q
A

Box mite

Intermediate Host of Moniezia & Anoplocephala spp.

Infected by Cysticercoids

26
Q
A

Box mite

Intermediate Host of Moniezia & Anoplocephala spp.

Infected by Cysticercoids

27
Q
A

Mature Cysticercoid larva (L2)

Infective larval stage of Moniezia & Anoplocephala spp

Infect Box mites as their Intermediate host

28
Q
A

Moniezia spp. life cycle

  1. Egg with Oncosphere (L1)
  2. Cysticercoid (L2) infects box mite
  3. Infected box mites sit on the tip of grass
  4. Small ruminants accidentally eat the mites
  5. Worms develop in their intestine
  6. Segments are shed containing eggs
29
Q
A

Anoplocephala perfoliata

They have acetabuli but no rostellum or bothridia
Their segments are anapolytic

Adult tapeworm of Horses

30
Q
A

Anoplocephala perfoliata

They have acetabuli but no rostellum or bothridia
Their segments are anapolytic

Adult tapeworm of Horses

Intermediate Host: Box mites

31
Q
A

Anoplocephala magna

Adult tapeworm of Horses

Intermediate Host: Box mites (Cysticercoid)

32
Q
A

Triangular eggs with oncosphere (L1)

Moniezia expansa

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

33
Q
A

Semi-circular egg containing oncosphere (L1)

Anoplocephala sp.

Adult tapeworm of Horses

Intermediate Host: Box mites (Cysticercoid)

34
Q
A

Quadrangular eggs with oncosphere (L1)

Moniezia benedeni

Adult tapeworm of Small Ruminants

Intermediate Host: Box mites (Cysticercoid)

35
Q
A

Box mite

Intermediate Host of Moniezia & Anoplocephala spp.

Infected by Cysticercoids

36
Q
A

Dipylidium caninum

They have acetabuli and rostellum but no bothridia
Their segments are apolytic

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

37
Q
A

Dipylidium caninum

They have acetabuli and rostellum but no bothridia
Their segments are apolytic

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

38
Q
A

Dipylidium caninum

They have acetabuli and rostellum but no bothridia
Their segments are apolytic

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

39
Q
A

Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

40
Q
A

Segments of Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

41
Q
A

Gravid segments of Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

42
Q
A

Carnine-stained mature segment

Dipylidium caninum

Two ovaries, many testicles

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

43
Q
A

Carnine-stained immature and mature segments

Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

44
Q
A

Carnine-stained mature segment

Dipylidium caninum

Two ovaries, many testicles

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

45
Q
A

Gravid segment of Dipylidium caninum

Filled with eggs (the double outline is not visible)

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

46
Q
A

Gravid segment of Dipylidium caninum

Filled with cocoons - eggs (the double outline is not visible)

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

47
Q
A

Gravid segment of Dipylidium caninum

Filled with cocoons - eggs

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

48
Q
A

Cocoon of Dipylidium caninum

Filled with eggs containing six-hoocked oncosphere

Collected with Flotation method

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

49
Q
A

Cocoon of Dipylidium caninum

Filled with eggs containing six-hoocked oncosphere

Collected with Flotation method

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

50
Q
A

Cocoon of Dipylidium caninum

Filled with eggs containing six-hoocked oncosphere

Collected with Flotation method

Adult tapeworm of Dogs/Cats/Humans

Intermediate Hosts: Ctenocephalides spp. / Trichodectes canis

51
Q
A

Ctenocephalides sp.

Intermediate host of Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

52
Q
A

Trichodectes canis

Intermediate host of Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

53
Q
A

Flea larva ingesting a Cysticercoid

Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

54
Q
A

Flea larva ingesting a Cysticercoid

Dipylidium caninum

Adult tapeworm of Dogs/Cats/Humans

55
Q
A

Life cycle of Dipylidium caninum

  1. Adult worms develop in smal intestine
  2. Posterior segments of adult worms passed in faeces
  3. Segments and cocoons in faeces and on fur
  4. Eggs ingested by flea larva
  5. Infected adult flea is accidentaly ingested by dog
56
Q

Cestodes in birds and their intermediate hosts

A
  • Raillietina* spp. - IH: insects and snails
  • Davainea* spp. - IH: snails
  • Hymenolepis* spp. - IH: insects

Parasitology II UNIVET (6 decks)

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