Week Seven: Arthropods (Chapters 12 and 13) Flashcards Preview

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Flashcards in Week Seven: Arthropods (Chapters 12 and 13) Deck (59):
1

What are some examples of parasites under the phylum arthropoda?

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

2

What is the largest class under arthropoda?

Insecta

3

What are some examples of insects?

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

4

What does "arthropod" mean?

Jointed foot

5

What are some morphologic features of arthropods?

Jointed feet, chitinous exoskeleton, hemocoei, dioecious

6

What does hemocoei mean?

Body cavity filled with hemolymph (blood like fluid)

7

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

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

8

Arthropods can serve as vectors for...

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

9

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

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

10

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

Centipedes and millipedes
Produce venoms and toxic substances

11

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

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

12

Morphology of insecta

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

13

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

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

14

What is metamorphosis and what happens during it?

Development into adult insects
-Changes in size, form, structure

15

Explain simple metamorphosis in insects

3 Developmental stages:
-Egg
-Nymph (Sexually immature, wings may be absent, resembles adult stage)
-Adult

16

Explain complex metamorphosis in insects

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

17

What are the 9 orders under insect?

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

18

(Insecta) Dictyoptera:

Cockroaches and grasshoppers

19

Beetles:

Coleoptera (insecta)

20

(Insecta) Lepidoptera:

Moths and butterflies

21

True bugs:

Hemiptera (insecta)

22

(Insecta) Hymenoptera:

Ants, bees, wasps, yellow jackets

23

Sucking lice:

Anoplura (insecta)

24

(Insecta) Mallophaga:

Chewing lice

25

2 winged flies:

Diptera (insecta)

26

(Insecta) Siphonaptera:

Fleas

27

Why are cockroaches so disgusting?

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

28

What are the two life cycle stages for Lepidoptera?

(butterflies and moths)
-Adult stage
-Larval or caterpillar stage (may be pathogenic to domestic animals)

29

what are examples of Hemiptera?

(True bugs)
reduviid bugs, bed bugs, kissing bugs

30

True bugs (Hemiptera) are intermediate hosts for...

Trypanosoma cruzi (Chagas disease)

31

What do mallophaga look like?

(Chewing or biting lice)
Smaller than anoplura, yellow, rounded head, mandibulate mouthparts

32

What do anoplura look like?

(Sucking lice)
Red to gray in color, piercing mouthparts, pincer like claws

33

Who do anoplura not infect?

Cats and birds (Found on many other domestic animals)

34

What does pediculosis mean?

Infestation of lice

35

How are diptera classified?

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

36

What does musca anutamnalis mean?

Feeds on mucus, tears, and saliva of larage animals
(Diptera do this)

37

What is myiasis?

Maggot infestation (cuterebrosis or bots)

38

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

Chelicerata

39

What does acariasis mean?

Infestation by mites or ticks

40

Sarcoptidae do what to their host?

Burrow or tunnel within the epidermis (Sarcoptic mange)

41

Psoroptidae do what to their host?

Reside on surface of skin, within external ear canal

42

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

Sarcoptidae (mites)

43

Psoroptes
Chorioptes
Otodectes
...Are all examples of what?

Psoroptidae (mites)

44

Sarcoptes Scabei Canis and Felis:
Host, location of adult, derivation of genus, transmission route, common name

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

45

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

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

Otodectes Cynotis:
Host, location of adult, derivation of genus, transmission route, common name

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

47

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

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

48

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

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

49

Argasid

Soft ticks

50

Ixodid

Hard ticks

51

Otobius megnini

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

52

Argas persicus

Fowl tick of chickens, turkeys, wild birds

53

Ixodes scapularis

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

54

Rhipicepalus sanguineus

Brown dog tick
Vector for babesia canis

55

Dermacentor variabilis

American dog tick, wood tick
Vector for rocky mountain spotted fever

56

Dermacentor andersoni

Rocky mountain wood tick
Vector for rocky mountain spotted fever

57

Dermacentor occidentalis

Pacific coast dog tick

58

Ambilyomma americanum

Lone star tick

59

Amblyomma maculatum

Gulf coast tick