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Lab Tech 1 > Ch 48 Arthropods 1d > Flashcards

Ch 48 Arthropods 1d Flashcards

1
Q

What are the two basic families of Sarcoptiform mites?

A

Sarcoptidae and Psoroptidae

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2
Q

What is a characteristic behavior of Sarcoptidae mites?

A

Burrow or tunnel in epidermis

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3
Q

What condition is caused by Sarcoptes scabiei?

A

Sarcoptic mange

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4
Q

Is Sarcoptes scabiei zoonotic?

A

Yes

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5
Q

What is the normal habitat of Demodex sp.?

A

Hair follicles and sebaceous glands of the skin

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6
Q

What is necessary for Demodex infestation to become clinically apparent?

A

Immunodeficiency

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7
Q

What are the clinical signs of Demodex infestation?

A
  • Hair loss
  • Thickening of the skin
  • Pustule formation
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8
Q

How is Demodex diagnosed?

A

Deep skin scraping

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9
Q

Describe the shape of Demodex mites.

A

Cigar-shaped

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10
Q

What type of mites are Psoroptidae?

A

Nonburrowing mites

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11
Q

What do Psoroptidae mites feed on?

A
  • Keratinized scale
  • Hair
  • Tissue fluids
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12
Q

Which species of Psoroptidae is important in sheep?

A

Psoroptes

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13
Q

What is the important species of Chorioptes in cattle?

A

Chorioptes bovis

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14
Q

What is Cheyletiella commonly known as?

A

Walking dandruff

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15
Q

What is Otodectes cynotis associated with?

A

External ear canal

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16
Q

Pentastomids resemble what type of organism?

17
Q

What is the scientific name of the canine pentastomid?

A

Linguatula serrata

18
Q

Where are Pentastomids usually found?

A

Parasites of snakes and reptiles

19
Q

What is the role of Hirudo medicinalis in veterinary medicine?

A

Ectoparasite with pathogenic and beneficial roles

20
Q

What is hirudiniasis?

A

Invasion of the nose, mouth, pharynx, or larynx, or attachment of leeches to the skin

21
Q

What do leeches feed on?

22
Q

What can happen to a host due to leech feeding?

A

May become anemic or die from blood loss

23
Q

In what types of water are most leeches found?

A

Fresh water, a few in salt water

24
Q

What orders of insects are known to parasitize animals?

A
  • Hemiptera
  • Mallophaga
  • Anoplura
  • Diptera
  • Siphonaptera
25
Q

What is the term for infestation by lice?

A

Pediculosis

26
Q

What is the term for infestation by dipterans?

27
Q

What is the term for infestation by fleas?

A

Siphonapterosis

28
Q

What is the term for infestation by mites or ticks?

29
Q

What are the two types of ticks?

A
  • Hard ticks
  • Soft ticks
30
Q

What type of mites burrow into the epidermis?

A

Sarcoptiform mites

31
Q

What type of mites survive on the surface of the skin?

A

Nonburrowing mites (Psoroptidae)

Lab Tech 1 (21 decks)

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