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Parasitology quiz 2 > Protista 6 > Flashcards

Protista 6 Flashcards

1
Q

stramenopiles taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

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2
Q

straemeno-piles taxonomy

A

class- SAR-eukaryotes

order- straemenopiles

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3
Q

stramenopiles id

A
  • flagella w/ fine hair like projections
  • stamen and pile long narrow shaft giving rise to small number of fine hairs
  • entire structure inserts into cell by basal region
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4
Q

stamenopiles- diatoms

A

lost these hairs

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5
Q

stamenopiles associated with what

A

water molds, brown algae

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6
Q

blastocystis hominis taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

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7
Q

blastocystis hominis host

A
  • ppl, pigs, mammals
  • chickens, birds
  • amphibians, reptiles
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8
Q

blastocystis hominis lifecycle

A

Thick wall cyst found in human stool -> Infect epithelial cells of digestive tract & multiply asexually -> Vacuolar form makes multivacuolar form -> Precyst -> Thin walled cyst (autoinfection)

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9
Q

blastocystis hominis dx

A

maybe or maybe not symptomatic infection in humans

spectrum from watery d+ -> abd pain -> flatulence

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10
Q

blastocystis hominis transmission

A
  • cysts in stool

- fecal-oral via contaminated food/ water

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11
Q

blastocystis hominis life cycle fun fact

A

not for sure

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12
Q

pythium insidosum taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

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13
Q

pythium insidosum growth

A

hyphae like growth phases, aseptae, not a fungus

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14
Q

pythium insidosum host

A
  • horse, dog, cat
  • ppl
  • cow, sheep, goat
  • birds and bears
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15
Q

pythium insidosum flagella

A
  • tinsel- anterior flagellum

- whiplast- posterior flagellum

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16
Q

pythium insidosum life cycle

A
  • oogamy sexual process

- biflagellate zoospores in we environment, wet soil, vegetation

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17
Q

pythium insidosum tx

A
  • antifungals dont work well because lack ergosterol in cell membrane (20% therapeutic if used long term)
  • surfical resection and chemo
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18
Q

pythium insidosum transmission

A
  • chemotaxis towards decaying or injured tissue
  • extend highly invasive into host tissue on contact
  • not transmissible between nosts
19
Q

pythium insidosum seasons

A

dont survive winter

20
Q

pythium insidosum organ effected in who

A
  • Cutaneous form more in horses (kunkers, draining fistulas w/ necrotic yellow grey material)
  • GI form more in dogs (vomiting, wt loss, D, abd masses)
21
Q

pythium insidiosum dx

A
  • Lesions on body parts that were in direct contact w/ water that zoospores swam into
  • Mechanical damage, inflamm, edema, degradation, necrosis, arterial occlusion
22
Q

pythium insidiosum geography

A

tropical, subtropical, temperate regions worldwide

23
Q

entamoeba histolytica taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

24
Q

entamoeba histolytica dx

A
  • eat rbcs and can penetrate mucosa and cause death

- d+, liver abscess, death

25
Q

entamoeba histolytica lifecycle

A
  • excystation in si after ingestion then trophozoites migrate to lg intestine, mult then exit host in feces
26
Q

entamoeba histolytica transmission

A
  • cysts and trophozoites passed in feces
27
Q

entamoeba dispar taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

28
Q

entamoeba dispar dx

A

no disease or death

29
Q

acanthamoeba taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

30
Q

acanthamoeba host

A
  • humans, dogs, cats
31
Q

acanthamoeba id

A
  • acanthopodia

- pseudopodia w/ sm filamentous protrusions

32
Q

acanthamoeba transmission

A

cyst stage in through nose, eyes, broken skin

33
Q

acanthamoeba dx

A
  • keratitis (can live in contact lens solution)

- granulomatous amebic encephalitis (transported to brain via hematogenous spread)

34
Q

acanthamoeba found where

A

free living in various aquatic environment

35
Q

balamuthia mandrills taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

36
Q

balamuthia mandrillaris host

A
  • zoo animals

- humans

37
Q

balamuthia mandrillaris transmission

A

cyst stage through nose, eyes, broken skin

38
Q

balamuthia mandrillaris effects who

A
  • healthy individuals mainly the young
39
Q

balamuthia mandrillaris dx

A
  • chronic granulomatous amebic encephalitis in human (chronic, progressive, necrotizing)
  • necrotizing skin lesions
  • fatal
40
Q

balamuthia mandrillaris found where

A
  • south Carolina
  • texas
  • Mexico
  • venezuela
41
Q

blastocystis hominis tx

A

no proven tx infection clears on its own

42
Q

what was most common thing found in human fectals

A

blastocystis

43
Q

balamuthia mandrillaris taxonomy

A

kingdom- protistis
class- sar- eukaryotes
order- straemenopiles

Parasitology quiz 2 (7 decks)

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