Parasitology Exam 1 Flashcards

1
Q

Parasite

A

Organism of the animal kingdom that lives within or upon another organism

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2
Q

ectoparasite

A

Parasite living on the outside of an animal

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3
Q

endoparasite

A

parasite living in tissues or body cavities of another animal

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4
Q

stationary parasite

A

a parasite that attaches somewhere and stays there

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5
Q

periodic parasite

A

a parasite that is on and off host during parts of its life cycle

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6
Q

permanent parasite

A

a parasite that stays on host at all times

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7
Q

obligate parasite

A

needs host, cannot survive on own

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8
Q

Facultative parasite

A

involves 2 generations, a free living and an obligate generation

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9
Q

incidental parasite

A

accidental parasite

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10
Q

aberrant parasite

A

wrong location parasite, ectopic

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11
Q

pseudoparasite

A

looks like parasite but isn’t under a microscope

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12
Q

host

A

animal that harbors parasite at some stage of its life cycle

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13
Q

final/definitive host

A

harbors adult, every parasite must have

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14
Q

intermediate/indirect host

A

an animals that harbors the larval stage and is necessary for completion of its life cycle

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15
Q

transport/paratenic host

A

unnecessary but convenient host that harbors larval stage of parasite, no development occurs

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16
Q

monoxenous

A

only one species will harbor host, narrow host range

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17
Q

stenoxenous

A

narrow host range

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18
Q

euryxenous

A

broad host range

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19
Q

direct life cycle

A

parasite does not need an intermediate host, can use a paratenic

20
Q

indirect life cycle

A

needs an intermediate host

21
Q

infective stage

A

stage that parasite can cause infestation

22
Q

routes of infestation (6)

A

digestion, ingestion of paratenic, in utero, ingestion intermediate host, skin penetration, transmammary

23
Q

Prepatent period

A

Time between infestation and reproductive maturity where ova is shed.

24
Q

Pathogenicity

A

The damage the parasite is capable of producing in its host

25
Q

Parasitiasis

A

animal with active infestation but no clinical signs

26
Q

Parasitosis

A

when animal has infestation and clinical signs present

27
Q

Hermaphrodites

A

parasite possesses both male and female organs but none functional

28
Q

monoecious

A

both sex organs and both are functional

29
Q

dioecious

A

only one sex organ that is functional

30
Q

vivaparous

A

egg larvates within mother aka larviparous. see larva in fecal

31
Q

oviparous

A

parasite lays eggs and see eggs in fecal exam

32
Q

ovoviviparous

A

eggs laid but see larva in fecal exam

33
Q

Gross examination

A

description of feces

34
Q

Direct smear

A

smearing fecal sample on slide with dilute PSS to look for giardia, larva, motility

35
Q

shapes of ova

A

oval, triangular, square, Dshaped, round

36
Q

operculum

A

indentation or protrusion of one or both ends of an oval shaped ovum

37
Q

Concentration or float exam

A

use floatation solution to cause eggs to float in solution

38
Q

cytology

A

prepped slides to look for clostridium and campylobacter

39
Q

4x magnification

A

to see ectoparasites and tapeworm segments

40
Q

10x magnification

A

for scanning to locate parasite

41
Q

40x magnification

A

used to identify parasite and giardia cysts

42
Q

100x magnification

A

all cytology, clostridium and campylobacter

43
Q

NSATT

A

nothing seen at this time

44
Q

platyhelminthes

A

flatworms

45
Q

nemahelminthes

A

roundworms

46
Q

arthropoda

A

ectoparasites

47
Q

most important when reporting parasite

A

genus