Echinococcus Granulosus Parasite Lifecycle
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Questions and Answers

What is the diagnostic stage of Echinococcus Granulosus?

  • Ectocyst
  • Endocyst
  • Pericyst
  • Hidated cyst (correct)

    • Which layer of the hydatid cyst wall is composed of characteristic a cellular, chitinous, laminated hyaline material?

  • Endocyst
  • Ectocyst (correct)
  • Pericyst
  • Acephalocysts

    • What is found in the interior of the hydatid cyst?

  • Hydatid fluid (correct)
  • Acephalocysts
  • Endocyst
  • Scolices

    • What does an acephalocyst refer to?

    <p>Sterile cysts that never produce brood capsules</p> Signup and view all the answers

    What is the mode of transmission of Echinococcus Granulosus in humans, sheep, and cattle?

    <p>Ingestion of eggs through contaminated food or water</p> Signup and view all the answers

    What is the outer host inflammatory reaction consisting of fibroblastic proliferation, mononuclear cells, eosinophils, and giant cells known as?

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

    Which of the following is the recommended treatment for early stages of hydatid cysts?

    <p>Puncture, aspiration, injection, and reaspiration (PAIR)</p> Signup and view all the answers

    Which of the following is the definitive host for Echinococcus granulosus?

    <p>Dogs and wolves</p> Signup and view all the answers

    What is the infective stage of Echinococcus granulosus?

    <p>Embryonated egg</p> Signup and view all the answers

    Which of the following is the optimal definitive host for Echinococcus granulosus?

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

    How is the mode of transmission of Echinococcus granulosus in humans?

    <p>Ingestion of eggs in raw vegetables or in dogs' feces</p> Signup and view all the answers

    What is the larval form of Echinococcus granulosus called in the intermediate host?

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

    What is the characteristic morphology of Echinococcus granulosus?

    <p>Small, short neck, 4 suckers, 2 rows of hooks</p> Signup and view all the answers

    Which of the following statements about acephalocysts is correct?

    <p>They lack a scolex and protoscolex</p> Signup and view all the answers

    What is the diagnostic stage of Echinococcus granulosus?

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

    Which of the following is the ideal intermediate host for Echinococcus granulosus?

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

    How does a human become infected with Echinococcus granulosus?

    <p>By ingesting eggs from contaminated food or water</p> Signup and view all the answers

    What is the morphology of the adult Echinococcus granulosus worm?

    <p>It has a scolex with 4 suckers and a prominent rostellum with hooklets, a short neck, and a strobila with 3 proglottids</p> Signup and view all the answers

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