Medical Helminthology: Endoparasites and Exoparasites
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Questions and Answers

Which phylum includes class nematoda and two subclasses: Subclass – Aphasmidia and Subclass – Phasmidia?

  • Phylum Platyhelminthes
  • Class – Cestoda
  • Phylum Nemathelminthes (correct)
  • Class: Monogenea
  • Which class of Phylum Platyhelminthes are ectoparasites of fishes and do not infect humans?

  • Class: Monogenea (correct)
  • Class – Cestoda (tapeworms)
  • Class – Nematoda
  • Class – Trematoda (flukes or digeneans)
  • In which form do helminths exist in general, apart from the adult form?

  • Eggs (correct)
  • Larvae
  • Juveniles
  • Pupae
  • Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes helminths?

    <p>Phylum Platyhelminthes</p> Signup and view all the answers

    Which class of Phylum Platyhelminthes includes tapeworms?

    <p>Class – Cestoda (tapeworms)</p> Signup and view all the answers

    Which characteristic is true for Phylum Platyhelminthes?

    <p>They are monoecious or hermaphrodite</p> Signup and view all the answers

    Which phylum possesses a definite body cavity?

    <p>Phylum Nematoda</p> Signup and view all the answers

    Which phylum is characterized by the presence of tissue flukes or blood flukes?

    <p>Phylum Platyhelminthes</p> Signup and view all the answers

    Which subclass of trematodes live as obligate parasites of both mollusks and vertebrates?

    <p>Digenea</p> Signup and view all the answers

    Which helminth requires two hosts to complete its life cycle?

    <p>Nematodes</p> Signup and view all the answers

    Which type of helminth directly discharges the larval forms after fertilization?

    <p>Viviparous</p> Signup and view all the answers

    What is the larval form found in cestodes?

    <p>Hydatid cyst</p> Signup and view all the answers

    Which phylum has a rudimentary nervous system and no circulatory system?

    <p>Phylum Nematoda</p> Signup and view all the answers

    Which helminth completes its life cycle in two hosts, including a definitive host and an intermediate host?

    <p>Cestodes</p> Signup and view all the answers

    Which phylum includes trematod species that may also infect vertebrates such as turtles and fish?

    <p>Phylum Platyhelminthes</p> Signup and view all the answers

    Which helminth lays eggs containing larvae that immediately hatch out?

    <p>Ovoviviparous</p> Signup and view all the answers

    Which phylum includes the class Monogenea, known for being ectoparasites of fishes and not infecting humans?

    <p>Phylum Platyhelminthes</p> Signup and view all the answers

    Which subclass of Phylum Nemathelminthes is characterized by having a rudimentary nervous system and no circulatory system?

    <p>Aphasmidia</p> Signup and view all the answers

    Which class of Phylum Platyhelminthes includes flukes or digeneans?

    <p>Trematoda</p> Signup and view all the answers

    In which form do helminths exist in general, apart from the adult form?

    <p>Adult, larval, and egg forms</p> Signup and view all the answers

    Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes parasitic worms?

    <p>Phylum Platyhelminthes</p> Signup and view all the answers

    Which phylum includes class nematoda and two subclasses: Subclass – Aphasmidia and Subclass – Phasmidia?

    <p>Phylum Nemathelminthes</p> Signup and view all the answers

    Which phylum completes its life cycle in two hosts, including a definitive host and an intermediate host?

    <p>Cestodes</p> Signup and view all the answers

    Which type of helminth lays eggs containing larvae that immediately hatch out?

    <p>Nematoda</p> Signup and view all the answers

    In which phylum do helminths have a definite body cavity?

    <p>Nematoda</p> Signup and view all the answers

    Which subclass of trematodes lives as obligate parasites of both mollusks and vertebrates?

    <p>Digenea</p> Signup and view all the answers

    Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes helminths?

    <p>Platyhelminthes</p> Signup and view all the answers

    Which class of Phylum Platyhelminthes includes tapeworms?

    <p>Cestoda</p> Signup and view all the answers

    What is the larval form found in cestodes?

    <p><strong>Cysticercus</strong></p> Signup and view all the answers

    Which phylum includes trematod species that may also infect vertebrates such as turtles and fish?

    <p>Platyhelminthes</p> Signup and view all the answers

    Which phylum possesses a rudimentary nervous system and no circulatory system?

    <p>Nematoda</p> Signup and view all the answers

    Which helminth requires two hosts to complete its life cycle?

    <p>Trematodes</p> Signup and view all the answers

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