Lab 7. Examination for arthropods of veterinary importance. Lice, fleas (T) Flashcards

1
Q

What is the name of the development for lice?

A

Epimorphosis (egg > 3/5 nymph stages > adult): insects

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2
Q

How big is an adult louse?

A

1-14 mm

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3
Q

How many larval stages of flea?

A

3

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4
Q

How does fleas develop?

A

By Holometamorphosis

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5
Q

In flea infestation, which are the clinical signs?

A

None of them
Correct: Restlessness, scratching, intense grooming, anemia, fleabite allergy, hot spot in dog
and military dermatitis in cat)

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6
Q

Which is true? (size of adult flea)

A

Adult flea is 1-6 mm

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7
Q

How big are the eggs of flea?

A

0.5 mm

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8
Q

Which is characteristic for a cat infected with fleas?

A

Miliary dermatitis

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9
Q

Which is characteristic for a dog infected with fleas?

A

Hotspots on lumbosacral and gluteal region

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10
Q

What is special about Tunga penetrans (jigger)?

A

Only the male sucks blood

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11
Q

Genus of the human flea?

A

Tunga penetrans

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12
Q

Genus of the rat flea?

A

Xenopsylla cheopis

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13
Q

What is the name of development for fleas?

A

Holometamorphosis (egg > 3-11 larval stages > pupa > adult): insects

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14
Q

Which gender are the biggest lice?

A

Female

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15
Q

How are the eyes of the lice?

A

Reduced or absent

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16
Q

How many abdominal segments do fleas have?

A

10 abdominal segments

17
Q

What does the cocoon of fleas contain?

A

Pupa

18
Q

One of the anoplura species of cattle is the Linognathus…?

A

Vituli

19
Q

How many spiracles do lice have?

A

Six pairs

20
Q

How many abdominal segments do lice have?

A

9 segments

21
Q

What is the blood-sucking lice species of cattle?

A

Linognathus vituli, Hematopinus eurysternus and Solenopotes capillatus

22
Q

Which are the hosts of the blood sucking lice?

A

Mammals

23
Q

Which are the chewing/biting lice of humans?

A

It does not exist

24
Q

Which are the chewing/biting lice of pigs?

A

It does not exist

25
Q

Which are the chewing/biting lice of rabbits?

A

It does not exist

26
Q

Which are the blood sucking lice of birds?

A

It does not exist

27
Q

Which are the blood sucking lice of cats?

A

It does not exist

28
Q

Which is the blood sucking louse of sheep?

A

Linognathus stenopsis, Linognathus ovillus and Linognathus pedalis

29
Q

Which is the blood sucking louse of dogs?

A

Linognathus setosus

30
Q

Which suborder does Solenopotes capillatus belong to?

A

Anopeura (blood-sucking lice)

31
Q

Which suborder does Felicola subrostratus belong to?

A

Ichnocera (chewing or biting lice)

32
Q

How do the lice spread?

A

By contact, phoresy

33
Q

How many antennae does the Amblycera/Ischnocera have?

A

3-5 segmented antennae

34
Q

How many antennae does the Anoplura have?

A

5 segmented antennae

35
Q

How many nymphal stages do lice have?

A

3 nymphal stages

36
Q

How long do blood sucking lice survive without a host?

A

1-4 days

37
Q

How long do chewing/biting lice survive without a host?

A

1-2 weeks