Parasitology: Hookworm and Strongyloides stercoralis
30 Questions
4 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the most common symptom of hookworm infection?

  • Ground itch
  • Anemia (correct)
  • Gastrointestinal symptoms
  • Respiratory symptoms
  • Where are both N. americanus and A. duodenale found?

  • Middle East and North Africa
  • Europe and Oceania
  • Asia and Africa (correct)
  • The Americas only
  • Where do adult hookworms reside in the human body?

  • Colon
  • Large intestine
  • Stomach
  • Small intestine (correct)
  • How can larvae be used to differentiate between N. americanus and A. duodenale?

    <p>By rearing filariform larvae in a fecal smear (B)</p> Signup and view all the answers

    What is the predominant species in the Americas and Australia?

    <p>N. americanus (B)</p> Signup and view all the answers

    How do hookworm larvae enter a human host?

    <p>Through the skin (C)</p> Signup and view all the answers

    Which method is most commonly used to diagnose hookworm infection?

    <p>Microscopic identification of eggs in stool (A)</p> Signup and view all the answers

    What is the length range of adult female Ancylostoma duodenale?

    <p>10 to 13 mm (D)</p> Signup and view all the answers

    What additional symptoms, apart from anemia, can occur in hookworm infection?

    <p>'Ground itch' (C)</p> Signup and view all the answers

    How long can hookworm infective larvae survive in favorable environmental conditions?

    <p>4 weeks (D)</p> Signup and view all the answers

    What is the characteristic feature of an Ascaris egg containing a larva?

    <p>It is infective when ingested (D)</p> Signup and view all the answers

    How do hookworm larvae reach the small intestine after penetrating the skin?

    <p>Through blood vessels to the lungs (C)</p> Signup and view all the answers

    What is the size range of Strongyloides stercoralis male worms?

    <p>1 mm (A)</p> Signup and view all the answers

    How are hookworm infections generally treated?

    <p>With albendazole for 1-3 days (A)</p> Signup and view all the answers

    What is the most distinctive aspect of the Strongyloides life cycle compared to other nematodes?

    <p>Potential for autoinfection (C)</p> Signup and view all the answers

    What happens to the rhabditiform larvae of Strongyloides stercoralis that molt twice?

    <p>They become infective filariform larvae (B)</p> Signup and view all the answers

    Which type of life cycle does Strongyloides stercoralis exhibit?

    <p>Free-living cycle (A)</p> Signup and view all the answers

    How do the filariform larvae of Strongyloides stercoralis initiate the parasitic cycle in humans?

    <p>Penetrate the human host skin (C)</p> Signup and view all the answers

    What is the most typical symptom of enterobiasis?

    <p>Perianal pruritus (A)</p> Signup and view all the answers

    Where do gravid females migrate to oviposit in enterobiasis?

    <p>On the skin of the perianal area (A)</p> Signup and view all the answers

    What is retroinfection in the context of enterobiasis?

    <p>Migration of larvae from skin to rectum (C)</p> Signup and view all the answers

    Where is microscopic identification of eggs done to diagnose enterobiasis?

    <p>On a slide after pressing adhesive tape on perianal skin (D)</p> Signup and view all the answers

    In which location is enterobiasis more common according to the text?

    <p>Temperate countries (A)</p> Signup and view all the answers

    What is the estimated number of persons infected with enterobiasis in the United States?

    <p>40 million (C)</p> Signup and view all the answers

    How long can Taenia saginata survive in the upper jejunum?

    <p>25 years (A)</p> Signup and view all the answers

    Which part of the tapeworm body is responsible for holding onto the host's intestine?

    <p>Scolex (B)</p> Signup and view all the answers

    How many suckers does the scolex of Taenia saginata possess?

    <p>4 suckers (C)</p> Signup and view all the answers

    How many rows of hooklets are present on the scolex of Taenia solium?

    <p>2 rows (A)</p> Signup and view all the answers

    In which part of the tapeworm body are the lateral genital pores located?

    <p>Proglottids (A)</p> Signup and view all the answers

    How many lateral branches make up the uterus in the terminal segments of Taenia saginata?

    <p>15-20 lateral branches (B)</p> Signup and view all the answers

    More Like This

    Hookworm Infection and Epidemiology
    16 questions
    Human Parasitology: Hookworm Infections
    40 questions
    Hookworm Infections and Anemia Quiz
    40 questions
    Use Quizgecko on...
    Browser
    Browser