Parasitology- Part 1

  1. What are roundworms?
    nematodes
  2. What is the infectious stage of Strongyles, Hookworms, and Pinworms?
    free-living L3 larvae [Nematodes]
  3. What is the infectious stages of Roundworms and Whipworms?
    Larvated/embryonated egg in environment [Nematodes]
  4. _________ have environmentally resistant stages.
    Protozoa
  5. What is the infectious stage of members of the family Eimeriidae (coccidia)?
    sporulated oocyst
  6. What is the infectious stage of members of the family Sarcocystidae?
    [Neospora, Toxoplasma, Sarcocystis- Protozoans] sporulated oocyst
  7. What are the general features of cestodes? (4)
    scolex with 4 suckers, strobila is head/neck/proglottids, proglottids are hermaphroditic, elongated and flat body
  8. What are the types of larval stages of cestodes? (5)
    cysticercus, strobilocercus, cysticercoid, coenurus, and hyatid cyst
  9. What is a fluke?
    a trematode
  10. The life cycle of a trematode is _________, using a(n) __________ host.
    indirect; molluscan intermediate
  11. What is an implication in the treatment of flukes?
    characteristic/special tegument
  12. What is the infectious stage of trematodes for the IH?
    Miracidia in water
  13. What is the infectious stage of trematodes for the DH?
    cercariae in mollusk IH
  14. Why would an animal that has been dewormed still be positive for Trichuris vulpis on fecal?
    pyrantel does not work on whipworms; must use fenbendazole
  15. Why doesn't the heartworm snap test work for puppies under 6 months of age?
    HWT identified antigen from adult female worms- need ~6 months for adult worms to develop
  16. Identify this organism.
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  17. Identify this organism.
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  18. Identify this organism.
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  19. Identify this organism.
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Author
Mawad
ID
314114
Card Set
Parasitology- Part 1
Description
vetmed parasitology
Updated