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Para 2 tests > Test 1 > Flashcards

Test 1 Flashcards

1
Q

What is the host spectrum of Fasciola Hepatica?

A

Wide, mostly herbivorous mammal and humans.

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2
Q

What are the steps of the lifecycle of F.hepatica?

A

MI- SPO-RE1-RE2-CE.

Miracidium, Sporocysts, Redia, Cercaria

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3
Q

How is the lifecycle of F.hepatica?

A

Indirect.

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4
Q

Where can you find the adult form of Fasciola hepatica?

A

In the bile duct and gallbladder.

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5
Q

Where can you find the juvenile form of Fasciola hepatica?

A

Penetrates the intestine and migrates to the liver via abd cavity.

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6
Q

What is the 1º intermediate host of F.hepatica?

A

Galba truncatula ( snail).

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7
Q

What is the main source of heavy fasciolosis?

A

2º biotopes.

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8
Q

What is the size of the eggs of F.hepatica?

A

120- 150µm.

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9
Q

Which color of the eggs does Fasciola hepatica have?

A

Golden yellow.

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10
Q

What does the Fasciola hepatica eggs contain?

A

Zygote.

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11
Q

What surrounds the egg of the F.hepatica?

A

Granulated yolk.

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12
Q

Zygote containing egg of F.hepatica develops into?

A

Ciliated larva ( miracidium) in H2O usually within 2 weeks.

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13
Q

F.hepatica: in the body of snail the first larva turns into?

A

Bladder-like sporocyst.

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14
Q

What happens in the cavity of sporocyst of F.hepatica?

A

3rd larval form develops by asexual budding ( paedogenesis).

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15
Q

In which stage does the F.hepatica shed their tail?

A

Cercariae.

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16
Q

How long takes the migration in the liver parenchyma of F.hepatica?

A

4- 6 weeks.

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17
Q

Approximately how long is the praepatent period of F.hepatica?

A

10 weeks.

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18
Q

What are the definitive hosts of F.hepatica?

A

All kinds of Ru., mainly the hollow-horned ones ( bovidae).

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19
Q

What are the most susceptible sp. for F. hepatica?

A

Sheep, goat, rabbit and hare + ( artificially mouse and rat).

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20
Q

What are the moderately susceptible sp. of Fasciola hepatica?

A

Cattle, deer, roe-deer, mouddlon, buffalo and camel _ ( artificial guinea pig).

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21
Q

What are the least susceptible sp. for F.hepatica?

A

Eq, Sus, Dog, cat, humans.

22
Q

What can be the symptoms of acute form of F.hepatica?

A

Rapid weight loss, sudden death.

23
Q

What colour are the MM in case of sub acute F.?

A

Pale.

24
Q

What can be symptoms of sub acute form of F.hepatica?

A

Severe anemia, bottle jaw.

25
Q

What can be symptoms of chronic form of F.hepatica?

A

Submandibular oedema, cachexia.

26
Q

F.hepatica: in case of acute form the young flukes can be found in?

A

Parenchyma.

27
Q

F.hepatica: in case of chronic form the flukes can be found?

A

In the biliary duct + gallbladder.

28
Q

What are the steps of the lifecycle in rumen fluke?

A

MI- SPO- RE1-CE ( Miracidium, Sporocysts, redia, Cercaria).

29
Q

How is the lifecycle of rumen flukes?

A

Indirect.

30
Q

How long is the praepatent period of rumen flukes?

A

16- 18 weeks.

31
Q

Where can you find immature rumen flukes?

A

Duodenum and abomasum.

32
Q

Juvenile form of rumen flukes is found in?

A

Duodenum.

33
Q

What color does the eggs of rumen flukes have?

A

They are colorless.

34
Q

What is special about the juvenile rumen flukes?

A

They never leave the intestinal canal during their route from small intestine to the forestomach.

35
Q

What is the intermediate host of the rumen flukes?

A

Galba truncatula for Calicophoron sp. and shells of planorbids act as intermediate hosts for Paramphistomum sp.

36
Q

What is the habitat for the intermediate host of the rumen flukes?

A

They have wide range of habitats.

37
Q

In which animals is the rumen fluke common?

A

In wild animals.

38
Q

What is the size of the eggs of lancet flukes?

A

40- 48 m long.

39
Q

When id the miracidium able to hatch in the lancet flukes?

A

If the egg is consumed by a landsnail.

40
Q

Where does the larva of the lancet fluke hatch?

A

In the intestines of the snails.

41
Q

Where does the larca of the lancet fluke develops?

A

In the body cavity of the intermediate host to sporocyst.

42
Q

What does the sporocyst of the lancet fluke produce?

A

Several generations of other sporocysts ( daughter sporocyst?)

43
Q

Cercariae of the lancet fluke have a sharp spine on the tip of the head, what is it called?

A

Stylet.

44
Q

How does the cercariae of the lancet fluke leave the snail?

A

With the expelled mucus.

45
Q

Where does juvenile lancet flukes develop into adults?

A

Liver, through biliary ducts.

46
Q

Approximately how long is the preapatent period in the lancet flukes?

A

About 7- 9 weeks.

47
Q

What is the intermediate host of the lancet flukes?

A

Small landsnails may act as first intermediate host.

48
Q

For how long does the infected snail survive in the lancet flukes?

A

1-4 years.

49
Q

What is the 2nd intermediate host of the lancet flukes?

A

Ants.

50
Q

How long does the infected ants of the lancet flukes survive for?

A

Max. 1 year.

Para 2 tests (9 decks)

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