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Parasitology > Week Seven: Arthropods (Chapters 12 and 13) > Flashcards

Week Seven: Arthropods (Chapters 12 and 13) Flashcards

1
Q

What are some examples of parasites under the phylum arthropoda?

A

Spiders, mites, ticks, crabs, crayfish, lobsters, water fleas, copepods, millipedes, centipedes

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2
Q

What is the largest class under arthropoda?

A

Insecta

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3
Q

What are some examples of insects?

A

Cockroaches, beetles, bedbugs, fleas, bees, ants, wasps, mosquitoes, butterflies, moths, grasshoppers, lice, silverfish, dragonflies

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4
Q

What does “arthropod” mean?

A

Jointed foot

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5
Q

What are some morphologic features of arthropods?

A

Jointed feet, chitinous exoskeleton, hemocoei, dioecious

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6
Q

What does hemocoei mean?

A

Body cavity filled with hemolymph (blood like fluid)

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7
Q

What are the most important subphylas (under arthropoda) in veterinary medicine?

A

Chelicerata (mites, ticks, spiders, scorpions)
and
Mandibulata (crustaceans, centipedes, millipedes, insects)

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8
Q

Arthropods can serve as vectors for…

A

Bacteria, viruses, spirochetes, rickettsiae, chlamydial agents, other pathogens

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9
Q

Phylum: Arthropoda
Subphylum: Mandibulata
Class: Crustacea
What TYPE of parasites are under this and what is their importance?

A

Aquatic arthropods
Intermediate hosts for flukes, tapeworms, foundworms
Serve as causal agents

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10
Q

Phylum: Arthropoda
Subphylum: Mandibulata
Class: Myriopoda
what TYPE of parasites are under this and what is their importance?

A

Centipedes and millipedes

Produce venoms and toxic substances

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11
Q

Phylum: Arthropoda
Subphylum: Mandibulata
Class: Insecta
What is their importance?

A

Serve as causal agents, produce venoms and toxic substances, intermediate hosts, serve as vectors

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12
Q

Morphology of insecta

A 
Segmented body
3 pairs of segmented legs
Bilateral symmetry
Chitinous exoskeleton
Dorsal heart
Ventral nerve cord
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13
Q

Insecta have a head, thorax, and abdomen… Explain what each one contains

A

Head: Brain, antennae, ventrally directed mouth parts, eyes
Thorax: Three pairs of legs, 1 or 2 pairs of wings
Abdomen: Reproductive organs

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14
Q

What is metamorphosis and what happens during it?

A

Development into adult insects

-Changes in size, form, structure

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15
Q

Explain simple metamorphosis in insects

A

3 Developmental stages:

  • Egg
  • Nymph (Sexually immature, wings may be absent, resembles adult stage)
  • Adult
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16
Q

Explain complex metamorphosis in insects

A 
4 Developmental stages:
-Egg
-Larva (wormlike)
-Pupa (resting stage)
-Adult
No stages resemble each other
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17
Q

What are the 9 orders under insect?

A

Dictyoptera, coleopteran, Lepidoptera, hemiptera, hymenoptera, anoplura, mallophaga, diptera, siphonaptera

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18
Q

(Insecta) Dictyoptera:

A

Cockroaches and grasshoppers

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19
Q

Beetles:

A

Coleoptera (insecta)

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20
Q

(Insecta) Lepidoptera:

A

Moths and butterflies

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21
Q

True bugs:

A

Hemiptera (insecta)

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22
Q

(Insecta) Hymenoptera:

A

Ants, bees, wasps, yellow jackets

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23
Q

Sucking lice:

A

Anoplura (insecta)

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24
Q

(Insecta) Mallophaga:

A

Chewing lice

25
Q

2 winged flies:

A

Diptera (insecta)

26
Q

(Insecta) Siphonaptera:

A

Fleas

27
Q

Why are cockroaches so disgusting?

A

Disgorge portions of their partly digested food
Defecate wherever they roam and feed
Transmits salmonella spp.

28
Q

What are the two life cycle stages for Lepidoptera?

A

(butterflies and moths)

  • Adult stage
  • Larval or caterpillar stage (may be pathogenic to domestic animals)
29
Q

what are examples of Hemiptera?

A

(True bugs)

reduviid bugs, bed bugs, kissing bugs

30
Q

True bugs (Hemiptera) are intermediate hosts for…

A

Trypanosoma cruzi (Chagas disease)

31
Q

What do mallophaga look like?

A

(Chewing or biting lice)

Smaller than anoplura, yellow, rounded head, mandibulate mouthparts

32
Q

What do anoplura look like?

A

(Sucking lice)

Red to gray in color, piercing mouthparts, pincer like claws

33
Q

Who do anoplura not infect?

A

Cats and birds (Found on many other domestic animals)

34
Q

What does pediculosis mean?

A

Infestation of lice

35
Q

How are diptera classified?

A

On the way in which the adult male and female dipterans feed

36
Q

What does musca anutamnalis mean?

A

Feeds on mucus, tears, and saliva of larage animals

Diptera do this

37
Q

What is myiasis?

A

Maggot infestation (cuterebrosis or bots)

38
Q

Kingdom: animalia
Phylum: arthropoda
Subphyulum: ____?____
Class: acarina

A

Chelicerata

39
Q

What does acariasis mean?

A

Infestation by mites or ticks

40
Q

Sarcoptidae do what to their host?

A

Burrow or tunnel within the epidermis (Sarcoptic mange)

41
Q

Psoroptidae do what to their host?

A

Reside on surface of skin, within external ear canal

42
Q 
Sarcoptes spp.
Notoedres spp.
Cnemidocoptes spp.
Trixacarus spp.
...Are all examples of what?
A

Sarcoptidae (mites)

43
Q

Psoroptes
Chorioptes
Otodectes
…Are all examples of what?

A

Psoroptidae (mites)

44
Q

Sarcoptes Scabei Canis and Felis:

Host, location of adult, derivation of genus, transmission route, common name

A 
Host: Cats and dogs
LOA: Tunneling into superficial layers of epidermis
DOG: Flesh cutters
TR: Direct contact
CN: Scabies mite
45
Q

Notoedres Cati:

Host, location of adult, transmission route, common name(s)

A

H: Cats
LOA: Superficial layers of epidermis (surface of skin around ear pinna, face, neck, and feet)
TR: Direct contact
CN: Notoedric mange mite of cats, feline scabies mite

46
Q

Otodectes Cynotis:

Host, location of adult, derivation of genus, transmission route, common name

A 
H: Dogs, cats, ferrets
LOA: External ear canal
DOG: Ear biter or ear receiver
TR: Direct contact (highly transmissible)
CN: Ear mites
47
Q

Nonsarcoptiform mites:
Demodex spp. (Cati and canis)
Host, location of adult, transmission route

A

H: Domestic animals and humans (host specific)
LOA: Hair follicles and sebaceous glands of skin
TR: Direct contact

48
Q

Cheyletiella Parasitivorax

Host, location of adult, derivation of genus, transmission route, common name

A 
H: Dogs, cats, rabbits
LOA: surface of skin and hair coat
DOG: Small lip
TR: Direct contact
CN: Walking dandruff
49
Q

Argasid

A

Soft ticks

50
Q

Ixodid

A

Hard ticks

51
Q

Otobius megnini

A

Spinose ear tick of horses, cattle, sheep, goats, and dogs

52
Q

Argas persicus

A

Fowl tick of chickens, turkeys, wild birds

53
Q

Ixodes scapularis

A

Deer tick (vector for tularemia, babesia microti, borrelia burgdorferi-Lyme disease, granulocytic ehrlichiosis)

54
Q

Rhipicepalus sanguineus

A

Brown dog tick

Vector for babesia canis

55
Q

Dermacentor variabilis

A

American dog tick, wood tick

Vector for rocky mountain spotted fever

56
Q

Dermacentor andersoni

A

Rocky mountain wood tick

Vector for rocky mountain spotted fever

57
Q

Dermacentor occidentalis

A

Pacific coast dog tick

58
Q

Ambilyomma americanum

A

Lone star tick

59
Q

Amblyomma maculatum

A

Gulf coast tick

Parasitology (17 decks)

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