Medical Parasitology: Ascaris Lumbricoides (Roundworm)
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Questions and Answers

What is the natural host of the worm that produces intense irritation and pruritus of the perianal and perineal area?

  • Cattle
  • Pig
  • Sheep
  • Man (correct)

Which of the following is NOT a symptom of pinworm infestation?

  • Pruritus ani
  • Peritionitis
  • Eosinophilia (correct)
  • Nocturnal enuresis

What is the primary location where the worm lays its eggs?

  • Anus (correct)
  • Vulva
  • Vagina
  • Uterus

What is the name of the device used to diagnose pinworm infestation?

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

What percentage of the world's population is estimated to be infected with Ascaris lumbricoides?

<p>25% (C)</p> Signup and view all the answers

What is the primary reason for the scratching and excoriation of the skin around the anus in pinworm infestation?

<p>The worm's crawling out of the anus to lay eggs (B)</p> Signup and view all the answers

In which part of the human body do adult Ascaris lumbricoides worms live?

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

What is the result of the accumulation of fluids in the lungs due to the migration of Ascaris lumbricoides larvae?

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

What is the characteristic of the life cycle of both Ascaris lumbricoides and Enterobius vermicularis?

<p>They have only one host (D)</p> Signup and view all the answers

What is the habitat of adult Enterobius vermicularis worms?

<p>Caecum, appendix, and adjacent portion of ascending colon (A)</p> Signup and view all the answers

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