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Clinical Laboratory Techniques > Ectoparasites: Phylum Arthropoda > Flashcards

Ectoparasites: Phylum Arthropoda Flashcards

1
Q

Phylum Arthropoda

A

“Jointed foot”

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2
Q

Arthropods may serve as

A

Casual agents and produce venoms or toxic substances
Intermediate hosts for protozoan and helminth parasites
Vectors for bacteria, viruses, and other pathogens

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3
Q

What do adult Arthropods have?

A

Jointed legs
Segmented bodies with a hard outer covering
Have a Hemocoel
Dioecious and reproduce by means of eggs

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4
Q

What is the hard outer covering composed of?

A

Chitin

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5
Q

What is the Hemocoel?

A

A body cavity filled with hemolymph

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6
Q

What does Dioecious mean?

A

Male and female individuals

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7
Q

What are the characteristics of insects?

A

3 pairs of legs

3 distinct body regions

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8
Q

What are the three distinct body regions of insects?

A

Head
Thorax with or without wings
Abdomen

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9
Q

What are the characteristics of Arachnids?

A

4 pairs of legs
2 body regions
No antennae

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10
Q

What are the two body regions of arachnids?

A

Cephalothorax

Abdomen

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11
Q

What are the mouthparts of both insects and arachnids adapted for?

A

Their meal
Bloodsucking
Chewing
Sponging

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12
Q

What are the developmental stages of most insects?

A

Egg
Larval stages
Pupa

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13
Q

Which insect stage is the metamorphosis stage to adult?

A

The pupa stage

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14
Q

Which insect stage is the hardest to get rid of?

A

The pupa stage

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15
Q

What are the developmental stages of other insects?

A

Egg to immature adult or nymphs that resemble the adult form

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16
Q

What are the developmental stages of arachnids?

A

Egg
Larva
Nymph
Adult

17
Q

How many orders are included in the class Insecta?

A

30

18
Q

Class: Insecta
Order: Siphonoptera

A

Fleas

19
Q

Class: Insecta
Order: Mallophaga

A

Biting lice

20
Q

Class: Insecta
Order: Anoplura

A

Sucking lice

21
Q

Class: Insecta
Order: Diptera

A

Flies and mosquitos

22
Q

Class: Arachnida
Order: Acarina

A

Sarcoptiform mites

Scabies and ear mites

23
Q

Class: Arachnida
Order: Trombidiformes

A

Non-sarcoptiform mites

Demodex and fur mites

24
Q

Class: Arachnida
Order: Ixodida
Family: Ixodidae

A

Hard ticks

25
Q

Class: Arachnida
Order: Ixodida
Family: Argasidae

A

Soft ticks

26
Q

What are the diagnostics for Ectoparasites?

A

May be seen grossly
Skin scrape
Cellophane tape method
Eat mite check

27
Q

What ectoparasites may be seen grossly?

A

The presence of fleas and ticks

28
Q

What are the two types of skin scrapes?

A

Deep

Superficial

29
Q

What are you looking for when doing skin scraping?

A

Mites

30
Q

What kind of mites do you see on a deep skin scraping?

A

Demodex

31
Q

What kind of mites do you see on superficial skin scraping?

A

Scabies

32
Q

What ectoparasites do you look for when doing a cellophane tape method?

A

Fur mites and lice

Clinical Laboratory Techniques (45 decks)

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