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Parasitology > MidTerm > Flashcards

MidTerm Flashcards

1
Q

Aberrant parasite

A

Erratic parasite

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2
Q

Acaricides

A

Drugs that kill acarides (mites)

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3
Q

Annelids

A

Segmented parasites

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4
Q

Anthelmintics

A

Drugs that kill helminths

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5
Q

Antiprotozoals

A

Drugs that kill protozoans

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6
Q

Definitive host

A

Host that houses parasite in parasites mature, adult, sexual stage

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7
Q

Dioecious

A

Separate sexes

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8
Q

Endoparasitism

A

Parasite within the body

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9
Q

Euryxenous parasite

A

Parasite that affects multiple species

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10
Q

Facultative parasite

A

Parasite that can live without a host

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11
Q

Hirudineans

A

Leeches

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12
Q

Hydatid Cyst

A

Cyst containing eggs in their own spot/separated by others

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13
Q

Infection

A

Parasite within body causes this

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14
Q

Infestation

A

parasite outside body causes this

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15
Q

Intermediate host

A

Host that holds parasite during larval stage

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16
Q

Obligatory parasite

A

parasite needs a host

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17
Q

Operculated ovum

A

Shaped like stewies head; oval, has operculums

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18
Q

Prepatent period

A

Time where host is infected until time able to diagnose

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19
Q

Alimentary canal

A

GI tract

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20
Q

Proboscis

A

Spiny attachment organs of acanthocephalans

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21
Q

Rostellum

A

On scolex of cestodes

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22
Q

Occult blood

A

Blood in feces

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23
Q

Schistosome

A

Blood flukes

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24
Q

Scolex

A

Head of cestode

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25
Q

Hirudo medicinalis

A

Leech used for medicinal purposes

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26
Q

Name the five types of symbiotic relationships and give an example for each:

A
  • Mutualism: Cow and bacteria in rumen
  • Parasitism: Dog having heartworm
  • Comensalism: Shark and cleaner fish
  • Predator/Prey: Zebra being killed by lion
  • Phoerisis: Cow and fly (carrying pink eye from cow to cow)
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27
Q

Explain difference between infection nd infestation

A

Infection: When host has an endoparasite
Infestation: When host has an ectoparasite

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28
Q

Explain difference between facultative and obligatory parasites

A

Facultative: Free living parasite, does not need a host to survive
Obligatory: Parasite needs host to survive

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29
Q

Explain difference between homoxenous and euryxenous parasites

A

Homoxenous: Parasite that can only affect one species
Euryxenous: Parasite that can effect multiple species

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30
Q

List the 7 Linnaean classification in order:

A

Kingdom, phylum, class, order, family, genus, species

31
Q

In what kingdom do most parasites of domestic animals belong?

A

Animalia

32
Q

Flatworms belong in what phylum?

A

Platyhelminthes

33
Q

Roundworms belong in what phylum?

A

Nematoda

34
Q

Thorn0headed worms belong in what phylum?

A

Acanthocephala

35
Q

Spiders and mites belong in what phylum?

A

Arthropoda

36
Q

Kingdom, phylum, class for tapeworms

A

Animalia, Platyhelminthes, cestoda

37
Q

Since tapeworm infections are treated similarly, why is it important to identify which type of tapeworm infection an aimal has?

A

So we know how the animal got the parasite and how to stop it from happening again

38
Q

Trichuris vulpis

A

Canine whipworm

39
Q

Intermediate host for Dipylidium caninum

A

Flea

40
Q

Life cycle of D. immitis

A

L1, (molts), L2, (molts), ingested by host, L3, parasite produces eggs

41
Q

The most powerful anticoagulant ____ known is secreted into the bite wound of ______ to keep the host bleeding as the animal feeds

A

Hirudin, leeches

42
Q

What is the benefit of medicinalleeches?

A

For them to secrete hirudin, also to allow and aid the blood to circulate the body to new body parts

43
Q

T/F

Veterinarians and techs are responsible for many aspects of human health and disease prevention

A

True

44
Q

T/F

A parasite can cause parasitiasis in some animals with a low parasite burden or number

A

True

45
Q

T/F

A parasite may cause parasitosis with a high parasite burden

A

True

46
Q

T/F
All parasites can have obligatory stage in their development where they need a host and some life stages can be nonparaistic

A

False

47
Q

T/F

With some parasites, only the female adult is paraisitic while free living males and femals are nonparasitic

A

True

48
Q

T/F

Novice veterinary technician students always mistake air bubbles on a fecal flotation slide for a parasite egg

A

False

49
Q

T/F

Some parasites can serve as intermediate hosts for other parasites as well as being parasites themselves

A

True

50
Q

T/F

Most parasites of domestic animals belong in the kingdom protista

A

False

51
Q

T/F

Monogenetic flukes are commonly seen in veterinary practice

A

False

52
Q

T/F
Pseudotapeworms use microscopic aquatic crustaceans and the musculature of fish and reptiles as intermediate hosts for part of their life cycle

A

True

53
Q

T/F

Annelids are the largest group of helminthes that parasitize domesticated animals

A

False

54
Q

T/F

The spiny proboscis on Acanthocephalans is used as an organ of motion or movement

A

False; attachment

55
Q

T/F

Most of the ectoparasites seen in the veterinary profession belong to the phylum insecta

A

False

56
Q

T/F

Nematodes are the most numerous and diverse group of animals on Earth

A

True

57
Q

T/F

Nematodes have a pseudocoelom

A

True

58
Q

T/F

Whipworms produce fewer eggs than nematodes

A

True

59
Q

T/F

Whipworms only release eggs every third day

A

True

60
Q

T/F

In dog feces, you will commonly find the larvae, rather than ova, of Strongyloides species

A

True

61
Q

T/F

Ideally, centrifugal flotation should be used to better float whipworm ova

A

True

62
Q

T/F

Feline heartworm disease produces the same hallmark signs observed in canine heartworm disease

A

False

63
Q

T/F

Acanthocheilonema reconditum is transmitted to the dog by ingestion of the cat flea, Ctenochalides felis

A

True

64
Q

T/F

The suckers on Cestodes are associated with food intake

A

False

65
Q

T/F

The life cycle of the pseudotape worm is more simplistic than that of the true tapeworm or Eucestode

A

False

66
Q

T/F

Taenid eggs cannot be found on standard fecal flotation

A

False

67
Q

T/F

Digenetic trematodes do not possess an anus

A

True

68
Q

T/F

Fasciola hepatica is the most studied fluke affecting domestic livestock

A

True

69
Q

T/F

The eggs of the lung fluke can be found on fecal sedimentation of feces or sputum

A

True

70
Q

T/F

Only two species of acanthocephalans are important to veterinary medicine

A

True

71
Q

T/F

Leeches have segmented bodies with no hard exoskeleton

A

True

72
Q

T/F

Medicinal leeches can consume blood up to five times their own weight

A

True

73
Q

T/F

Medicinal leeches are most often though of in conjunction with bloodletting throughout history

A

True

74
Q

T/F

Land leeches are found on the surface of trees and grasses

A

True

Parasitology (17 decks)

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