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Elsevier Parasitology (RVSP) > 3. Protozoa (I) > Flashcards

3. Protozoa (I) Flashcards

1
Q

Disease caused by E. histolytica

A

Amoebic dysentery (amoebiasis)

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2
Q

IS of E. histolytica

A

Cysts

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3
Q

DS of E. histolytica

A

Cysts

Trophozoites

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4
Q

Number of nuclei of E. histolytica cysts

A

1-4 nuclei

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5
Q

Diagnostic characteristic for E. histolytica trophozoites

A

Ingested RBCs

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6
Q

Nonpathogenic protozoan identical to E. histolytica

A

Entamoeba dispar

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7
Q

DS of Entamoeba coli

A

Cysts

Trophozoites

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8
Q

Characteristic of E. coli cysts that differentiate it from E. histolytica

A

More than 4 nuclei (1-8 nuclei normally)

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9
Q

Known as “small race” E. histolytica

A

Entamoeba hartmanni

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10
Q

DS of E. hartmanni

A

Cysts

Trophozoites

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11
Q

Protozoan with blot-like karyosome in both cyst and trophozoite stages

A

Endolimax nana

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12
Q

DS of E. nana

A

Cysts

Trophozoites

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13
Q

Protozoan with “basket of flowers”-shaped nucleus in cyst form

A

Iodameoba bütschlii

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14
Q

Protozoan that stains well with iodine

A

Iodamoeba bütschlii

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15
Q

DS of I. bütschlii

A

Cysts (recognizable glycogen mass using iodine stain)

Trophozoites

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16
Q

Protozoan that causes granulomatous amoebic encephalitis (GAE)

A

Acanthamoeba spp.

17
Q

Protozoan that causes primary amoebic meningoencephalitis (PAM)

A

Naegleria fowleri

18
Q

Protozoan with a double cell-walled cyst form

A

Acanthamoeba spp.

19
Q

Disease caused by Acanthamoeba spp.

A

Granulomatous amoebic encephalitis (GAE)

20
Q

Disease caused by N. fowleri

A

Primary amoebic meningoencephalitis (PAM)

21
Q

Protozoans with no known cyst form

A

N. fowleri
D. fragilis
T. hominis
T. vaginalis

22
Q

The only amoeba with 3 known morphologic forms

A

N. fowleri:

  • ameboid trophozoites (only form to exist in humans)
  • flagellates
  • cysts
23
Q

True/False. N. fowleri can be free living.

A

True

24
Q

Causes Traveler’s diarrhea

A

Giardia lamblia

25
Q

Other names of G. lamblia

A

G. intestinalis

G. duodenalis

26
Q

IS of G. lamblia

A

Cysts

27
Q

DS of G. lamblia

A

Cysts

Trophozoites

28
Q

Has trophozoites with sucking disk

A

G. lamblia

29
Q

Associated with E. vermicularis infections; may be transmitted via the eggs of helminth parasites

A

Dientamoeba fragilis

30
Q

IS of D. fragilis

A

Trophozoites

31
Q

Trophozoite has spiral groove

A

Chilomastix mesnili

32
Q

DS of C. mesnili

A

Cysts

Trophozoites

33
Q

Trophozoite has costa

A

Trichomonas hominis

34
Q

DS of T. hominis

A

Trophozoites

35
Q

Jerky motility of trophozoites

A

Trichomonas vaginalis

36
Q

IS of T. vaginalis

A

Trophozoites

37
Q

DS of T. vaginalis

A

Trophozoites

38
Q

The only amoeba pathogenic to the GI tract

A

Entamoeba histolytica

Elsevier Parasitology (RVSP) (10 decks)

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