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PARASITOLOGY > PARASITE > Flashcards

PARASITE Flashcards

1
Q

depends entirely upon its host for existence

A

Obligate

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2
Q

capable of parasitic and free-living existence

A

Facultative

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3
Q

capable of being outside the host

A

facultative

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4
Q

examples of facultative parasites

A
  • Strongyloides stercoralis
  • Free Living Amoebas (Naegleria fowleri and Acanthamoeba spp.)
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5
Q

causes meningoencephalitis

A

Naegleria fowleri and Acanthamoeba spp.

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6
Q

cannot live outside the host

A

obligate

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7
Q

larval stage is passed in a host while the adult is free living

A

Transitory

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8
Q

example of transitory

A

Strongyloides stercoralis in indirect cycle

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9
Q

completes its life cycle in one host

A

permanent

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10
Q

example of permanent cycle

A

Hymenolepis nana in direct cycle

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11
Q

pertains to one host

A

monoxenous/homoxenous

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12
Q

requires two or more host for the larval and adult stages

A

periodic

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13
Q

refers to two or more hosts

A

heteroxenous

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14
Q

examples of periodic

A

trematodes, cestodes, and agents of larva migrans

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15
Q

subclassification of obligates

A

transitory, permanent, periodic

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16
Q

primarily infects animals and may be acquired by man and cause infection

A

zoonotic

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17
Q

this causes balantidial dysentery

A

Balantidium coli

18
Q

causes granulotosis in man

A

Dirofilaria immitis

19
Q

occurs in unusual HOST

A

Accidental

20
Q

examples of accidental parasites

A

Echinococcus spp. and agents of larva migrans

21
Q

original DH and IH of Echinococcus spp.

A

DH: dog
IH: sheep, cattle

22
Q

occurs in an unusual ORGAN or HABITAT

23
Q

example of erratic

A

Ascaris lumbricoides

24
Q

erratic A. lumbricoides

A

Ectopic Ascariasis

25
Q

passes through the intestinal tract without causing any disturbance

A

Spurious or coprozoic

26
Q

examples of spurious or coprozoic parasite

A
  • Fasciola hepatica eggs
  • Capillaria hepatica unembryonated egg
27
Q

can get from eating raw or undercooked liver of infected animals

A

Fasciola hepatica

27
Q

infective stage of Capillaria hepatica

A

Embryonated egg

28
Q

lives inside the body of a host

A

endoparasite

29
Q

lives on the body surfaces of the host

A

Ectoparasite

30
Q

examples of ectoparasites

A

Lice and itch mite

30
Q

endoparasitic invasion

30
Q

ectoparasitic invasion

A

infestation

30
Q

head lice/louse

A

Pediculus humanus capitis

30
Q

example of itch mite

A

Sarcoptes scabiei

31
Q

Body louse

A

Pediculus humanus humanus

31
Q

crab louse or pubic louse

A

Phthirus pubis

32
Q

examples of intermittent

A

bed bugs, mosquito, flea, tick, biting fly

32
Q

visits the host only during feeding time

A

intermittent

33
Q

copro in coprozoic means

PARASITOLOGY (25 decks)

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