Microimmunology- Helminths

10 Questions | Total Attempts: 822

SettingsSettingsSettings
Please wait...
Microimmunology- Helminths

.


Questions and Answers
  • 1. 
    The three main groups of helminth important to human are ________, _________ and ___________.
    • A. 

      Sarcodina, Cestoda and Sporozoa

    • B. 

      Cestoda, Digenea and Nematoda

    • C. 

      Protozoa, metazoa, and parasite worm

    • D. 

      Trematoda, platyhelminths, mastigophora

  • 2. 
    One of these statements is true regarding Cestode (tapeworms):
    • A. 

      Long thin unsegmented tube-like bodies with anterior mouths and longitudinal digestive tracts.

    • B. 

      Small flat leaf-like bodies.

    • C. 

      All Cestodes (tapeworms) have separate sexes with well-developed reproductive systems.

    • D. 

      long flat ribbon-like bodies with a single anterior holdfast organ (scolex)

  • 3. 
    Nematodes (roundworms) have a fluid-filled internal body cavity called ___________ which acts as a hydrostatic  skeleton providing rigidity.
    • A. 

      Taeniasis

    • B. 

      Acoelomate

    • C. 

      Pseudocoelum

    • D. 

      Meazoa

  • 4. 
    Helminths infection can occur by one of these process:
    • A. 

      Swallowing infective eggs or larva via the fecal-oral route.

    • B. 

      Swallowing infective larvae in the tissues of another host.

    • C. 

      Active penetration of the skin by larval stages.

    • D. 

      All of the above.

  • 5. 
    Most often laboratory test perform for helminths infection is __________
    • A. 

      Wet prep

    • B. 

      Examination of the stool for ova and parasites (O&P)

    • C. 

      Eosinophil antibody by PCR

    • D. 

      Fecal occult

  • 6. 
    In Helminth's life cycle, a definitive host  is one in which  the ____________  occurs  or the _________ is present.
    • A. 

      Sexual cycle; adult

    • B. 

      Spore cycle; larva

    • C. 

      Asexual cycle; larva

    • D. 

      Binary fusion ; adult

  • 7. 
    One of the folllowing is true about Taeniasis?
    • A. 

      Most Taeniasis is symptomatic

    • B. 

      Taeniasis only occurs in human and cows

    • C. 

      Taeniasis specifically refers to chronic ring worm with self mechanism to invade host immunity.

    • D. 

      Taeniasis refers specifically to infection with the adult tapeworm in the gut of the definitive host.

  • 8. 
    Human acquired  schistosomiasis  by ________
    • A. 

      Ingesting fish infected with larval stages

    • B. 

      Ingesting vegetation with larva stages

    • C. 

      Penetration of skin by larva stages from snails

    • D. 

      Ingesting crabs infected with larva stages

  • 9. 
    Trichinella does not require intermediate hosts.
    • A. 

      True

    • B. 

      False

  • 10. 
    Platyhelminths are the cestoda and the nematoda.
    • A. 

      True

    • B. 

      False

Back to Top Back to top