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VPARA 412a (Veterinary Helminthology) > Class Cotyloda (Pseudophyllidea) False Tapeworms > Flashcards

Class Cotyloda (Pseudophyllidea) False Tapeworms Flashcards

1
Q

Cotyloda (Pseudophyllidae)

A

✓ mm to 10 meters
✓ w/ 2 deep groves called bothria
✓ hooks are absent
✓ each segment has usually one set of reproductive organs
✓ w/ numerous testes
✓ w/ scattered vitellaria
✓ bilobed ovary
✓ “uterine pore” is present through which the eggs are discharged
✓ eggs are operculated and unembryonated

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2
Q

3 Genera of Family Diphylobothridae

A

✓ Diphyllobothrium
✓ Spirometra

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3
Q

common name of Diphyllobothrium latum

A

broad fish tapeworm of man

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4
Q

Scientific name of broad fish tapeworm of man

A

Diphyllobothrium latum

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5
Q

Host of Diphyllobothrium latum “broad fish tapeworm of man”

A
  • fish-eating mammals (man, dogs, cats)
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6
Q

predilection site of Diphyllobothrium latum “broad fish tapeworm of man”

A

small intestine

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7
Q

SN of 1st intermediate host of Diphyllobothrium latum “broad fish tapeworm of man”

A

Copepods
SN:
Diaptomus vulgaris, Cyclops strenuus

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8
Q

2nd intermediate host of Diphyllobothrium latum “broad fish tapeworm of man”

A

Freshwater fish (trout, spike, salmon, perch)

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9
Q

largest tapeworm of man

A

Diphyllobothrium latum

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10
Q

Eggs of Diphyllobothrium latum

A

operculated, light brown with round ends

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11
Q

the exact cause of anemia of Diphyllobothrium latum in man is not yet well established. the ff may be possible causes;

A

✓ increased blood destruction
✓ inhibition of hematopoiesis factor
✓ competition for vit. B12

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12
Q

Clinical signs of Diphyllobothrium latum

A

✓ non-specific abdominal symptoms
✓ anemia
✓ malnutrition

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13
Q

Drug of choice for Diphyllobothrium latum

A

Praziquantel 25mg/kg
Niclosamide
Quinacrine

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14
Q

Common name of Spirometra erinacei

A

Zipper tapeworm

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15
Q

SN of Zipper worm

A

Spirometra erinacei

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16
Q

Caused by several spp. of spirometra

A

Spirometrosis (zipper worm disease)

17
Q

Final Host of Spirometra erinacei (Zipper worm)

A

Carnivores

18
Q

1st IH of Spirometra erinacei (zipper tapeworm)

A

Copepods (cyclops)

19
Q

2nd IH of Spirometra erinacei (zipper tapeworm)

A

frog, reptile, mammals, birds

20
Q

the second larval stage (plerocercoid) is specifically referred to as?

A

Sparganum

21
Q

Most common Pseudophyllidean tapeworm in the Philippines

A

(Spirometra) Spirometra erinacei

22
Q

sparganosis in huma

A

sparganum

23
Q

spirometra spp. prepatent period takes about?

A

10-30 days

24
Q

infection of man with plerocercoid is acquired by;

A

✓ drinking water containing procercoid infected crustacea
✓ eating plerocercoid infected hosts such as pig
✓ when infected frog or snake flesh is used as dressing for wound or ice

25
Q

man disease characterized by the presence of larvae in muscles and tissues

A

sparganosis

26
Q

clinical signs of sparganosis

A

urticaria, edema, inflammation in preorbital area

27
Q

treatment for sparganosis

A

surgical removal of plerocercoid or sparganum in humans

Arecoline Hydrobromide
Dichlorfen 20 mg/kg
Quinacrine HCI 15-40 mg/kg

28
Q

disease of cyprinoid and silurid fish

A

Ligulosis

29
Q

ligulosis caused by plerocercoids of tapeworms

A

Ligula intestinalis and Digramma interrupta in birds

30
Q

parasitic castration

A

Ligula intestinalis

31
Q

one or two plerocercoids in the abdominal cavity of fish may cause?

A

✓ growth retardation
✓ parasitic castration
✓ death of infected fishes

32
Q

infected stage of ligulosis reached in?

A

14 months

33
Q

disease of cyphenoid fish especially in cultured carp

A

Bothriocephalosis

34
Q

intermediate host of bothriocephalosis

A

copepods

35
Q

prepatent period of bothriocephalosis

A

20-25 days

36
Q

how many worms in young carp may be fatal due to severe enteritis

A

80-100 worms

37
Q

act as carriers of bothriocephalosis

A

adult fishes

38
Q

bothriocephalosis caused by?

A

Bothriocephalus acheilognathi

VPARA 412a (Veterinary Helminthology) (9 decks)

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