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Exits > Parasitology > Flashcards

Parasitology Flashcards

1
Q

What kind of lifecycle do heartworms have?

A

indirect

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2
Q

What is the intermediate host of heart worms?

A

misquitoes

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3
Q

What is Dirofilaria immitis?

A

heartworm

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4
Q

What is the prepatent period of heartworm disease?

A

6-9 months

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5
Q

How long do adult heartworms live?

A

5 years

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6
Q

How long can microfilariae live in the bloodstream?

A

up to 2 years

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7
Q

When do you have the best chance to discover microfilariae?

A

if blood sample is taken at night (they’re nocturnal)

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8
Q

What kind of life cycle do tapeworms have?

A

indirect

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9
Q

What on the tapeworm absorbs nutrients?

A

scolex

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10
Q

Taenia sp is really _____

A

geometric

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11
Q

What kind of tapeworm likes neural tissue?

A

Echinococcus spp.

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12
Q

What is the intermediate host of dipylidium?

A

flea

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13
Q

What species is commonly infected with Taenia spp?

A

cat

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14
Q

Where are liver flukes found?

A

in and around bile ducts, sometimes attached to the liver

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15
Q

What are the intermediate host for liver flukes?

A

snails

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16
Q

Scientific name for liver flukes.

A

Fasciola hepatica

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17
Q

It is _____ to find eggs of a fluke.

A

difficult

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18
Q

What kind of lifecycle does the fluke have?

A

indirect

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19
Q

What do liver flukes consume?

A

blood

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20
Q

T/F. Coccidia is an intermittent shedder.

A

true

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21
Q

What species is susceptible to coccidia?

A

bunnies

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22
Q

Which life stage of coccidia is commonly identified?

A

oocyst

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23
Q

How is coccidia transmitted?

A

ingestion of infected feces

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24
Q

Which life cycle requires an intermediate host?

A

indirect

25
Q

T/F. All parasites do some degree of damage to the host.

A

true

26
Q

Three “keys: to parasitism.

A

Adaptions to

  1. live
  2. reproduce
  3. infect new host
27
Q

The two major groups of ectoparasites are:

A

insects and arachnids

28
Q

Insects have ___ legs as adults and arachnids have ___ legs as adults.

A

six/eight

29
Q

Ticks belong to two major groups, ____ or “hard” ticks and ______ or “soft” ticks.

A

ixodidae/argasidae

30
Q

One disease that is transmitted to dogs by the common deerk tick is:

A

lyme disease

31
Q

T/F. Paralysis is a potential danger for dogs that have been subjected to tick bites.

A

True

32
Q

Otobius is commonly called the:

A

spinose ear tick

33
Q

_____ is the scientific name for the “flea”

A

Ctenocephalides sp

34
Q

The flea is an ___.

A

insect

35
Q

T/F. “ear mites” are insects.

A

false

36
Q

Scientific name for “ear mite”.

A

Otodectes cynotis

37
Q

Lice are divided into two major groups based on anatomy, those types are _____.

A

biting/suckingq

38
Q

The “deer tick” is implicated in this zoonotic diease.

A

lyme

39
Q

The intestinal phase of which disease only happens in cats?

A

Toxoplasma gondii

40
Q

Equine Protozoal Myeloencephalitis has an affinity for what kind of tissue?

A

neural

41
Q

What causes EPM?

A

Sarcocystis neurona

42
Q

What is EPM’s definitive host?

A

opossum which gets it from bird

43
Q

T/F. The horse is a dead end host for EPM.

A

true

44
Q

Examples of insects.

A

flea, fly, mosquito, lice

45
Q

Examples of arachnids.

A

mites, ticks

46
Q

Sarcoptes sp is?

A

scabies mite

47
Q

T/F. Scabies females burrow into the skin.

A

true

48
Q

Mallophaga lice do what?

A

biting/chewing

49
Q

Anoplura lice do what?

A

sucking

50
Q

Haematopinus suis.

A

hog louse

51
Q

Linognathus setosus.

A

canine sucking louse

52
Q

Gliricola porcelli.

A

guinea pig lice

53
Q

Haematopinus asini.

A

horse sucking louse

54
Q

Dermatobia hominis.

A

human bot fly

55
Q

Gasterophilus spp.

A

horse bot

56
Q

If you have too many horse bots they can rupture what?

A

stomach

57
Q

Trichenella spiralis

A

trichina worm

58
Q

What does Trichostrongylus spp inhabit?

A

abomasum and occasionally the small intestine

Exits (12 decks)

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