Platyhelminthes Flashcards

1
Q

Blood fluke

A

Schistosoma

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2
Q

Lung fluke

A

Paragonimus westermani

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3
Q

Bladder fluke

A

Polystoma

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4
Q

Dwarf tapeworm

A

Hymenolopsis nana

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5
Q

Dog tapeworm

A

Echinococcus granulosus / Hydatid worm

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6
Q

Fish tapeworm

A

Diphyllobothrium

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7
Q

Excretory organs in platyhelminthes

A

Flame cells/ protonephridia/ solenocytes

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8
Q

Diplozoon

A
  1. Ectoparasite on fish
  2. Complete monogamy
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9
Q

Rod like bodies in turbellarians

A

Rhabdites

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10
Q

Alternation of host and alternation of generations

A

Fasciola

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11
Q

Light sensitive cells in planaria

A

Ocelli

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12
Q

Regenerative cells in platyhelminthes

A

Neoblasts/ formative cells

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13
Q

Everted pharynx found in

A

Planaria (extra-oral digestion)

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14
Q

Fascioliasis caused by

A

Fasciola hepatica

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15
Q

Fasciolopsis caused by

A

Fasciola buski

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16
Q

Mehli’s gland

A

Lubricates egg passage

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17
Q

Vitelline gland

A

Produces yolk

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18
Q

Laurer’s canal

A

Acts as vagina

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19
Q

Intermediate host of fasciola

A

Snail (Planorbis, Lymnae)

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20
Q

Larval stages of Fasciola

A

Egg → Miracidium → Sporocyst → Redia → Cercaria → Metacercaria
(मिस रेश्मी)

21
Q

Larva infective to snail

A

Miracidium

22
Q

Larva infective to sheep

A

Metacercaria

23
Q

Pedogenetic parthenogenesis

A

Redia (produces same generation of daughter redia larva)

24
Q

Schistosoma haematobium

A

In human pelvic veins

25
Q

Schistosoma mansoni

A

In ileocecal junction

26
Q

Schistosoma japonicum

A

Hepatic portal and mesenteric veins

27
Q

Schistosoma illnesses

A

Bladder injuries, bladder stones, haematuria

28
Q

Secondary host of schistosoma

A

Snail (Bulinus)

29
Q

Larval stages of schistosoma

A

Egg → Miracidium → Sporocyst → Cercaria

30
Q

Schistosoma larva infective to snail

A

Miracidium

31
Q

Schistosoma larva infective to man

A

Cercaria

32
Q

Growth zone/ Zone of proliferation in Taenia

A

Neck

33
Q

Main part of taenia below neck

A

Strobilla (segments called proglottid)

34
Q

Types of proglottids

A
  1. Immature proglottids
    Reproductive organs immature or absent.
  2. Mature proglottids
    Contains many testes and a pair of ovaries.
  3. Gravid/ ripe proglottids
    Contain fertilized eggs, detached by apolysis.
35
Q

Wallowers of intestine

A

Taenia

36
Q

Male copulatory oragan in Taenia

A

Cirrus

37
Q

Hosts of taenia solium

A

Primary : Man
Secondary : Pig

38
Q

Larval stages of Taenia

A

Egg → Oncosphere → Hexacanth → Cysticercus → Adult

39
Q

Stage of taenia infective to man

A

Cysticercus (causing cysticercosis)

40
Q

Stage of taenia infective to pig

A

Oncosphere and Hexacanth

41
Q

Taenia infection in brain

A

Neurocysticercosis

42
Q

Pork tapeworm

A

Taenia solium

43
Q

Beef tapeworm

A

Taenia saginata

44
Q

Smallest tapeworm

A

Echinococcus granulosus

45
Q

Longest tapeworm

A

Diphyllobothrium latum

46
Q

Most injurious parasite in intestine of man

A

Diphyllobothrium latum

47
Q

Smallest human tapeworm

A

Hymenolopsis nana

48
Q

Secondary host of lung fluke

A

Amphibious snail and crayfish