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Parasitology Lecture > Lobosea > Flashcards

Lobosea Flashcards

0
Q

Can be pathogenic/non pathogenic

A

Dientamoeba fragilis

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1
Q

Pathogenic and Non Pathogenic Amoeba

A 
Entamoeba histolytica
Entamoeba coli
Entamoeba dispar
Entamoeba polecki
Entamoeba hartmanii
Entamoeba gingivalis
Iodamoeba butschlii
Endolimax nana
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2
Q

Mode of transmission of entamoeba gingivalis

A

Kissing

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3
Q

Developmental stage of Dientamoeba fragilis and Entamoeba gingivalis

A

Cystic and trophic stage

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4
Q

Habitat of Entamoeba gingivalis

A

Buccal cavities

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5
Q

Infective stage of Dientamoeba fragilis and Entamoeba gingivalis

A

Cystic and Trophic stage

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6
Q

All of them are non pathogenic except

A

Entamoeba histolytica

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7
Q

Stages of Amoeba: Trophozoite

A 
Motile
Feeding/Vegetative stage
One nucleus
Liquid/Watery feces 
Non infective stage
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8
Q

Stages of Amoeba

A

Trophozoite > Precyst > Cyst > Metacystic Trophozoite

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9
Q

Stages of Amoeba: Precyst

A

Transitory stage prior to encystation

Smaller than Trophozoite

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10
Q

Stages of Amoeba: Cyst

A 
Non motile
Infective stage
4-8 nucleus
Seen in formed stool 
Smaller than Trophozoite
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11
Q

Stages of Amoeba: Metacystic Trophozoite

A

Transitory stage prior to excystation

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12
Q

Cause of gingivitis

A

Entamoeba gingivalis

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13
Q

Types of intestinal amebiasis

A

Symptomatic/Acute

Asymptomatic/Chronic

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14
Q

Incubation period of symptomatic intestinal amebiasis

A

2-5 days

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15
Q

Systematic amebiasis is characterized by:

A

Necrotic, mucosa and abdominal pain

16
Q

Stool of systematic intestinal amebiasis is

A

Bloody and mucus filled

17
Q

Asymptomatic amebiasis is characterized by:

A

Recurrent episodes of dysentery, GIT, disturbances and constipation.

18
Q

Stool of asymptomatic amebiasis

A

Bloody and mucus filled

19
Q

Formed from primary intestinal lesions

A

Extraintestinal lesions

20
Q

Common site of extraintestinal amebiasis

A

Liver (Hepatic amebiasis)

21
Q

Other types of extraintestinal amebiasis

A

Pneumatic Amebiasis

Cerebral Amebiasis

22
Q

Laboratory diagnosis of extraintestinal amebiasis can be made through

A

Serological tests

23
Q

Examples of serologic tests for extraintestinal amebiasis

A

Complementary fixation tests
Hemagglutination test
Immunofluorescent antibody test
Double diffusion

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