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PARA LEC > WEEK 3.1 AMOEBA > Flashcards

WEEK 3.1 AMOEBA Flashcards

1
Q

Entamoeba histolytica

A

Pathogenic

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2
Q

Entamoeba dispar
- Entamoeba hartmanii - Entamoeba coli - Entamoeba gingivalis
- Entamoeba polecki - Entamoeba moshkovskii - Endolimaxnana
- Iodamoeba butschii - Blastocystis hominis

A

Non Pathogenic

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3
Q

Negleria fowleri
- Acanthamoeba spp.

A

Pathogenic
and Free- Living

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4
Q

Balantidium coli

A

Ciliata

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5
Q

Dientamoeba fragilis

A

Other int. protozoan

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6
Q

2 Stages of Development

A

Cyst and Trophozoite

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7
Q

Non-motile, non-Feeding stage, Resistant to acid

A

Trophozoite

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8
Q

development of cyst into trophozoite

A

Excystation

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9
Q

development of trophozoite into cyst

A

Encystation

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10
Q

mode of reproduction of trophozoite

A

Binary Fission

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11
Q

All amoeba are commensal except for

A

Entamoeba histolytica.

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12
Q

With pseudopodium (false feet)

A

finger-like structures for movement

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13
Q

Undergoes ENCYSTATION except for

A

E. gingivalis and Dientamoeba fragilis

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14
Q

Inhabits the large intestine except

A

E. gingivalis (gums)

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15
Q

presence of amoeba in any part ofthe body (exclusively applied to E. histolytica)

A

Amoebiasis

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16
Q

divides through “binary fission”, irregular in shape, motility: unidirectional, flask-shaped ulcers

A

Trophozoite

17
Q

1 to 4 nucleus, cigar/rod shaped chromatoidal body, centrally located karyosome.

A

Cyst

18
Q

Infective stage of E. histolytica

A

Tetranucleated/mature cyst

19
Q

MOT of E. histolytica

A

ingestion of contaminated food and/or water with E. histolytica cyst

20
Q

Vegetative and motile stage (Feeding stage)

A

Trophozoite

21
Q

Found in watery, soft, or semi-formed stool

A

Trophozoite

22
Q

Fragile

A

Trophozoite

23
Q

Non-motile, non- feeding stage

A

Cyst

24
Q

Found in soft to formed stool

A

Cyst

25
Q

Resistant to acidic pH

A

Cyst

26
Q
  • Gradual onset of abdominal pain
  • Diarrhea (with or without blood and mucus)
  • In children, bloody diarrhea, fever and abdominal pain
  • Abscess formation → Amoebic liver abscess
A

Symptoms of E. histolytica

27
Q

The presence of Charcot-Leyden crystals was found microscopically in the stool in cases of

A

Amoebic dysentery

28
Q

Amebic colitis / Amebic dysentery: Abdominal pain, diarrhea (with or without mucus and blood)

A

Intestinal Amebiasis

29
Q

Ameboma-mass like lesion with abdominal pain and dysentery (<1%)

A

Characteristic Ulcer: FLASK-SHAPE ULCER

30
Q
A

PARA LEC (3 decks)

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