Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Parasitology > Lecture 10: Mite Infestations > Flashcards

Lecture 10: Mite Infestations Flashcards

1
Q

main difference between mites and ticks

A

mites are microscopic
ticks macroscopic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

adults and nymphs have how many legs

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

larvae have how many legs

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

mites: life cycle

A

egg –> prelarva (non feeding) –> larvae –> nymph –> adult

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

3 mite orders

A

parasitiformes/mesostigmata
sarcoptiformes/astigmata
trombidiformes/prostigmata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

which mite order includes blood feeders

A

parasitiformes/mesostigmata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

palps definition

A

sensory mouthparts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

chelicerae: mesostigmata vs astigmata

A

mesostigmata = piercing/sucking mouthparts
astigmata = claw like feeding mouthparts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

mesostigmata and astigmata: morphology in common (5)

A

oval shape, dorsoventrally flattened body
8 legs
tarsus at end of leg
palps
chelicerae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

chelae definition

A

scissor like structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what kind of feeders are mesostimata

A

blood feeders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

mesostigmata: unique feature

A

chelae on ends
2 stigma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

asigmata: unique features

A

setae = elongate hairs (sensory)
tubercules and copulatory suckers in males

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

prostigmata have how many legs

A

4 pairs of legs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

prostigmata: 2 main species

A

demodex
eutrombicula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

demodex: generic name, 2 main anatomical components

A

follicle mite
gnathosoma = head
idiosoma = body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

eutrombicula: generic name

A

chiggers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

mite infestation can result in (5)

A

dermatitis
allergic reactions
loss of blood/body fluids
otitis externa
transmission of pathogens to humans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

diagnosis of mite infestations (3)

A

clinical signs = mange/dermatitis, allergic reactions, tissue trauma
direct visualization –> microscopic exam
taxonomic ID

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

how to prevent mite infestations (3)

A

clip hair/clean ears
medicated shampoos
regularly clean fomites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

main treatment for mite infestations

A

acaricides (ivermectin, fipronil, permethrin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

mites: symptomatic treatment for (2)

A

pruritis
secondary bacterial infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

larvae vs nymphs vs adults: number of legs

A

larvae = 6 leggs
nymphs = 8 legs
adults = 8 legs

24
Q

how many nymphal stages do all mites have

A

2-3

25
Q

3 nymphal stages

A

protonymph
deutonymph
tritonymph

26
Q

do all life cycle stages feed

A

no

27
Q

general life cycle steps

A

eggs –> larvae –> protonymph –> deutonymph –> tritonymph –> adults

28
Q

how are mites primarily transmitted

A

direct contact

29
Q

how do mites of vet importance infest animals (3)

A

feed externally on host
reside/feed subcutaneously
reside/feed in internal tissues

30
Q

external mites that are blood feeders (2)

A

ornithonyssus suylvarium
dermanyssus gallinae

31
Q

ornithonyssus sylvarium: generic name, hosts, where does life cycle take place

A

northern fowl mite
poultry and wild birds
entire cycle on host

32
Q

dermanyssus gallinae: generic name, hosts

A

red poultry mite
wild and domestic birds

33
Q

external mites that are piercing tissue feeders (1 species)

A

eutrombicula alfreddugsei

34
Q

eutrombicula alfreddugsei: general name, which form is parasitic, which forms/stages are free living, clinical signs

A

common chigger
many hosts
orange crusting dermatosis
intense pruritis, erythema, papules
only larval form is parasitic
nymphs and adults free living

35
Q

external mites that reside/feed on surface ( 6 species)

A

psoroptes ovis
chorioptes bovis
psorobia ovis
psorobia bos
cheyletierlla species
lynxacarus radovskyi

36
Q

pseroptes ovis: generic name, hosts, where life cycle is spent

A

scab mite
sheep, cattle, horses
entire life cycle on host

37
Q

chorioptes bovis: generic name, hosts (5), where life cycle is spent

A

chorioptic mange mite
cattle, horses, sheep, goats, rabbits
entire cycle on host

38
Q

psorobia ovis: generic name, host, where life cycle spent

A

sheep itch mite
sheep
entire life cycle on host

39
Q

psorobia bos: generic name, host, where life cycle spent

A

cattle itch mite
cattle
entire cycle on host

40
Q

cheyletiella species: generic name/aka, hosts = 3 different species, how transmitted

A

fur mites/walking dandruff
dogs = C. yasguri
cats = C. blakei
rabbits = C. parasitivorax
very contagious through direct contact

41
Q

lynxcarus radovskyi: generic name, host

A

cat fur mite
cat

42
Q

mite that resides in hair follicle

A

demodex species

43
Q

demodex: hosts, where life cycle spent, where burrows

A

host specific, most domestic mammals
entire life cycle on host
hair follicles and sebaceous glands

44
Q

3 mites that burrow into skin

A

sarcoptes scabiei
notoedres cati
knemidocoptes mutans

45
Q

sarcoptes scabiei: generic name, hosts, where life cycle spent

A

sarcoptic mange mites
most domestic animals
entire life cycle on host

46
Q

notoedres cati: generic name, host

A

cats
feline scabies mite

47
Q

knemidocoptes mutans: generic name, hosts

A

scaly leg mite
chickens, turkeys, wild birds

48
Q

mites that reside internally (4 species)

A

otodectes cynotis
raillietia auris
pneumonyssoides caninum
sternostoma tracheacolum

49
Q

otodectes cynotis: generic name, hosts

A

ear mite
cats and dogs

50
Q

raillietia auris: generic name, host

A

cattle ear mite
cattle

51
Q

pneumonyssoides caninum: host, generic name

A

canine ear mite
dogs

52
Q

sternostoma tracheacolum: generic name, hosts

A

avian nasal mite
wild and domestic birds

53
Q

environmental mite species

A

pyemotes tritici

54
Q

pyemotes tritici: generic name, where found

A

hay itch mites
straw, grain, hay

55
Q

which mite is also called walking dandruff

A

cheyletiella

56
Q

5 main types of mange

A

otodectic
sarcoptic
walking dandrugg
notoedric
demodectic

Parasitology (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions