Ahtc1260: Parasitology O1/O2

31 Questions | Total Attempts: 20

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Parasitology Quizzes & Trivia


Questions and Answers
  • 1. 
    [Blank], the flea tapeworm, is transported from eggs in the feces of the DH, into arthropods where they encyst with a single scolex (cysticercoid), and end up back in the DH after being ingested.
  • 2. 
    [Blank], known as the intestinal threadworm, is a round worm found in canines. There are 2 ways that this parasite is transmitted. One way involves the worm remaining in the canine to mature and produce, whereas the next involves the female worms releasing larvae in the intestines which from there enter the environment via feces and are transmitted cutaneous or transmammary.
  • 3. 
    There are 2 types of round worms with similar names and life cycles. The feline version is [Blank], and the canine version is [Blank]. This worm is transmitted for both types through the eggs entering the environment from the feces where they are either directly ingested or use a paratenic host before being re-ingested. The canine version can also be transmitted directly via transplacental/transmammary.
  • 4. 
    The 4 stages of the lifecycle in Diptera, in order, are [Blank], [Blank] (bots/maggots), [Blank], and [Blank].
  • 5. 
    The flea life cycle is the same as the 2 winged flies (diptera) but can take anywhere from [Blank] day(s) to [Blank] year(s) to complete the pre-patent period.
  • 6. 
    Lice have an [Blank] lifecycle in which there is a [Blank] stage, 3 [Blank] stages, and ending up in adult form.
  • 7. 
    In the family [Blank] (mites/ticks), there are 4 stages to their lifecycle. They start as eggs, mature into a [Blank] legged larva, then into an [Blank] legged nymph, and then finally into an [Blank] legged adult.
  • 8. 
    Flagellates such as [Blank] (or G. enterica/cati/canis) have a 6 step life cycle. First the [Blank] start in the GIT, from there they become a cyst form, then enter the environment through the feces where they are then re-ingested. Once they enter the duodenum, they excyst and develop into [Blank](#) trophozoites to start the cycle over again.
  • 9. 
    The family [Blank] include species such as Eimeria, Isospora, and Cryptosporidium. They begin as a zygote in mucosal cells which then are excreted in feces as [Blank] where they develop in the environment into a [Blank]. From here, they are ingested by the host where they then have both sexual and asexual cycles which end with more zygotes.
  • 10. 
    The family Heminthes can be separated into 2 types, the [Blank] (flatworms) and the [Blank] (round worms). Further, the flatworms can be broken down into [Blank] (tape worms) and [Blank] (flukes). The round worms are also known as [Blank].
  • 11. 
    The 3 branches in the family Diptera are the [Blank] (black flies,mosquitoes), [Blank] (horn fly, horse fly, deer fly), and the [Blank] (bot fly, stable fly).
  • 12. 
    There are 2 types of lice, [Blank] (biting) and [Blank] (sucking). Both are [Blank] flattened and have no complete metamorphosis.
  • 13. 
    Fleas are [Blank] flattened and are wingless insects with [Blank] mouth parts and a complete metamorphosis. An example is [Blank] (cat flea).
  • 14. 
    Within the Arachnida, there are 3 types of ticks of importance in veterinary medicine. The [Blank] include D. varabilis and D. andersoni and can transmit diseases such as Rocky Mountain Spotted Fever and females can produce a neurotoxin after 5 days of feeding. The [Blank] are hard ticks such as the deer tick, and the largest carrier for dog disease is [Blank]. Hard ticks have a hard [Blank]. Finally, the third type of tick is part of the family [Blank] which are soft ticks such as the Otobius megnini.
  • 15. 
    [Blank] is an infestation of larva in body tissue/cavities.
  • 16. 
    Apicomplexans are host specific and affect specific areas of the GIT. Intestinal coccidiosis results in diarrhea which can cause severe loss of fluid and blood. Animals with low-grade infections can act as carriers and cows can be asymptomatic but still provide a source of infection in calves. Subclinical losses are huge.
    • A. 


    • B. 


  • 17. 
    The stable fly's proper name is [Blank].
  • 18. 
    The proper name for black fly is [Blank].
  • 19. 
    Horse flies are known as [Blank].
  • 20. 
    Deer flies are known as [Blank].
  • 21. 
    The proper name for the face fly is [Blank].
  • 22. 
    The proper name for horn fly is [Blank].
  • 23. 
    The proper name for mosquito is [Blank].
  • 24. 
    Midges are known as [Blank].