Ch. 5 - The Hemoflagellates Flashcards Preview

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Flashcards in Ch. 5 - The Hemoflagellates Deck (110)
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Parasites located in the blood and tissue that move by means of flagella

Hemoflagellates

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2 genera of hemoflagellates

Leishmania and Trypanosoma

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4 morphologic forms of hemoflagellates

Amastigote, promastigote, epimastigote and trypomastigote

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Diagnostic form for Leishmania

Amastigote

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Diagnostic form for Trypanosoma

Trypomastigotes, except T. cruzi (amastigote)

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The only hemoflagellate morphologic form without a flagella

Amastigote

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Umbrella term for the blepharoplast and small parabasal body

Kinetoplast

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Hemoflagellate morphologic form that may assume the shape of the letters C, S or U

Trypomastigote

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Location of kinetoplast in trypomastigote

Posterior

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Length of undulating membrane in trypomastigotes

Full body length undulating

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Length of undulating membrane of epimastigote

Half the body length

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Location of nucleus in epimastigotes

Posterior end

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Location of kinetoplast in promastigotes

Anterior end

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Location of nucleus in promastigotes

Central

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2 morphologic forms routinely found in human specimens

Amastigotes and trypomastigotes

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3 typical locations of amastigotes

- tissue
- muscle
- CNS macrophages

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Typical location of trypomastigotes

Peripheral blood

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Typical location of epimastigotes

Arthropod vector

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Typical location of promastigotes

Newly infected blood sample and culture

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Subphylum of hemoflagellates

Mastigophora

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Class of hemoflagellates

Zoomastigophora

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Enumerate the 8 blood tissue species

- Leishmania braziliensis complex
- Leishmania donovani complex
- Leishmania mexicana complex
- Leishmania tropicana complex

- Trypanosoma brucei gambiense
- Trypanosoma brucei rhodesiense
- Trypanosoma cruzi
- Trypanosoma rangeli

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General term for diseases caused by the hemoflagellate genus Leishmania

Leishmaniasis

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General term for parasitic infection of the blood, into new environments, finding new host organisms and new vectors

Parasitemias

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Causes Bagdhad boils

Leishmania tropica

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Causes Bay sore

Leishmania mexicana

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Causes Chiclero ulcer

Leishmania mexicana

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Causes Dum dum fever

Leishmania donovani

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Causes Espundia

Leishmania braziliensis

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Causes forest yaws

Leishmania guyanensis