Protozoans

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Author:
katie_moni
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158762
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Protozoans
Updated:
2012-06-17 20:21:24
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Protozoans
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Protozoans
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  1. __ these are not worms, but are instead free-living organisms (mostly one cell), a few of which may live in the bodies of mammals causing disease.
    Protozoans
  2. What are some diseases associated with protozoans?
    • coccidiosis
    • malaria
    • piroplasmosis
    • trichomoniasis
    • giardiasis
    • hemobartonellosis
    • erhlichiosis
  3. __ live in the blood, lymph and tissue spaces and are transmitted indirectly by blood sucking flies
    Hemoflagellates
  4. __ live in the intestinal tract and genital tract and are spread directly through the feces or genital discharges
    Mucoflagellates
  5. __ the disease regardless of species is referred to as African Sleeping Sickness
    Trypanosoma
  6. Trypanosoma is the disease regardless of species is referred to as __
    African Sleeping Sickness
  7. __ effects ruminants in south africa causing Nagana using the Tsetse fly as the intermediate host between wild and domestic cattle
    Trypanosoma brucci
  8. _ no intermediate host (unique), uses direct sexual contact in horses causing Dourine.
    Trypanosoma equiperdum
  9. Trypanosoma brucci effects ruminants in south africa causing:
    Nagana
  10. This hemoflagellate uses the Tsetse fly as the intermediate host between wild and domestic cattle...
    Trypanosoma brucci
  11. Trypanosoma equiperdum has no intermediate hose(unique), uses direct sexual contact in horses causing__
    Dourine "Silver Dollar"
  12. __ this parasite lives in the cecum and colon multiplying in fluid feces and often are blamed for the diarrhea
    Trichomonas fetus
  13. __ is common in women but is not considered a pathogen
    Trichomonas vaginalis
  14. Trichomonas is also seen with bacteria in __ producing pyorrhea and gingival problems
    Vincent's Angina
  15. Sporozoa has two classes of blood causing hemolytic anemia:
    • Coccidia
    • Piroplasms
  16. __ is a mucoflagellate of interest and are very host specific often resulting in superparasitism.
    Coccidia
  17. What are the three Oocyst:
    • Eimeria- farm animals
    • Isospora- dogs, cats, swine and small companion pets
    • Toxoplasma- all domestic animals
  18. Coccidian Life Cycle
    • Sporozite are swallowed and invade cells of mucosa and divide to form Merozoites
    • Merozoites leave the cells and enter new cells and develop into Male/Female Gamonts
    • Gamonts mature to Macrogametes
    • The male Macrogamete divides into the Microgamete which fertilize the female Macrogametes
    • The female Macrogamets give rise to Zygotes
    • As food materials accumulate around the zygote, it becomes in Oocyts
    • The oocyts are released at death of mucosa cell
  19. What is the Review of the Coccidian life cycle?
    • IN THE HOST
    • 1. Sporozoite
    • 2. Merozoite
    • 3. Gamont
    • 4. Macrogamete and Microgamete
    • 5. Zygote
    • 6. Oocyts
    • OUTSIDE HOST
    • 7. Oocyst 8. Sporocysts 9. Sporozoite
  20. __ simplest of the Genuses found in farm animals and in birds. Direct life cycle
    Eimeria
  21. __ found in the dog, cat, swine and pocket pets
    Isospora
  22. Life cycle is direct or indirect through sporozoite infected mice that serve as faculative host for __ 
    Isospora felis
  23. __ sporozoites of __ utilize the direct and indirect means, with the indirect means being far more complex than with Isospora genus
    Toxoplasma
  24. Lifecycle of Toxoplasma:
    • eggs pass from the cat
    • oocysts, sporocysts, or sporozoites are picked up by intermediate
    • sporozoites (or sporocysts) will migrate into the tissues of the intermediates and become encysted or pass to the placenta in the human and cause abortions
    • cat eats the intermediate and picks up the sporozoite from the intermediate, thus completing the life cycle
  25. __ felidae (family) is the definitive host, all other domestic and non-domestics serve as intermediates
    Toxoplasma
  26. __ is an ubiquitous protozoan parasite infects virtually all warm-blooded vertebrates (cats are the definitive host)
    Toxoplasma gondii
  27. It is estimated that up to __% of people possess circulating antiboides to Toxoplasma gondii worldwide, implying either active parasite infection or prior exposure
    33%
  28. in immunocompetent people, toxoplasmosis is either an inapparent __ or brief flulike illness
    asymptomatic infection
  29. People with a brief flulike illness caused from Toxoplasma gondii often present what other signs:
    • fever
    • malasie
    • enlarged/inflammed lymphnodes
  30. Cats with Toxoplasma present what signs:
    • dyspnea
    • tachypnea
    • icterus
    • abdominal disorder

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