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Micribio > intro to parasitology > Flashcards

intro to parasitology Flashcards

1
Q

obligate parasite

A

entirely dependent

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2
Q

facultative parasite

A

exhibits both parasitic and non-parasitic modes of living

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3
Q

accidental parasite

A

not normally associated with host but still infects

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4
Q

where parasite undergoes sexual reproduction

A

definitive host

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5
Q

location of asexual stages of parasite

A

intermediate host

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6
Q

chagas disease

A

protozoan, kissing bug, long term digestive, cardiac, and neurological complication

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7
Q

cystericerosis

A

tapeworm cyst, seizures

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8
Q

toxocara

A

round worm, blindness

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9
Q

protist

A

single celled eukaryote

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10
Q

metazoa/helminth

A

multicellular worm

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11
Q

sarcodina

A

amoeba, type of protist, ex. nagleria fowleri, move by extending cytoplamsic projections

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12
Q

mastigophora

A

flagellates, type of protist, ex. giardia lamblia, move by whipping flagella

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13
Q

ciliophora

A

ciliates, protist, move by beating cilia, ex. balantidium coli

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14
Q

apicomplexia

A

protists, obligate intracellular parasite for most of life cycle, ex. toxoplasma

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15
Q

nematodes

A

roundworms, ex. toxocara

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16
Q

cestodes

A

tapeworms, ex taenia solium

17
Q

trematodes

A

flatworms, schistosoma mansoni

18
Q

proglotids

A

segments of tapeworm

19
Q

baylisacaris

A

racoon roundworm

20
Q

pathogensis factors of parasites

A

size and location, reproductive potential, nutritional requirements, location, immune response

21
Q

IgM

A

neutralizes parasites

22
Q

IgE

A

activates mast cells and basophils to trigger mediators

23
Q

Eosinophils

A

bind IgE to helminth and release toxic chemicals

24
Q

Macrophages

A

engulf smaller protists

25
Q

CD8+ T cells

A

release TNF-alpha and IFN-gamma to activate macrophages

26
Q

Il-5

A

eosinophil production

27
Q

IL-4

A

IgE production

28
Q

Th2 cells

A

release IL-5 and IL-4

29
Q

formed stool consistency

A

contain cyst stage of protozoa

30
Q

liquid/loose stool consistency

A

trophozite stage of protozoa

31
Q

thick vs thin smear

A

thick= presence, thin=differentiation

32
Q

purple trichrome stain

A

cysts

33
Q

red trichrome stain

A

nuclei and iinclusions

34
Q

green trichrome stain

A

background

35
Q

blue-green trichrome stain

A

cytoplasm of trophozoite

Micribio (11 decks)

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