Schistosomiasis Life Cycle
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Questions and Answers

What is the morphology of female Schistosoma adults?

  • Long and thin (correct)
  • Short and wide
  • Oval-shaped
  • Round and flat

Which of the following is responsible for the pathology associated with Schistosoma infections?

  • Eggs (correct)
  • Cercariae
  • Miracidia
  • Adult flukes

Which intermediate host is responsible for the transmission of Fasciolopsis buski?

  • Crab
  • Freshwater snail (correct)
  • Fish
  • Crustacean

What is the disease caused by Schistosoma haematobium?

<p>Urinary schistosomiasis (C)</p> Signup and view all the answers

Which of the following is NOT a reservoir for Schistosoma spp?

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

What is the diagnostic stage of Schistosoma spp?

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

What is the main function of suckers in Strongyloides adult worms?

<p>Attachment to host tissue (B)</p> Signup and view all the answers

How many eggs can a Strongyloides female produce per day?

<p>200,000 (A)</p> Signup and view all the answers

What is the characteristic of the body of Nematodes?

<p>Elongated, cylindrical, smooth, and unsegmented (D)</p> Signup and view all the answers

What is the main difference between Intestinal Nematodes and Tissue Nematodes?

<p>Location of adult worms in the body (A)</p> Signup and view all the answers

How do Nematodes typically infect humans?

<p>By eating uncooked meat with larvae in it (B)</p> Signup and view all the answers

How are diseases caused by Intestinal Nematodes typically diagnosed?

<p>By identifying characteristics of eggs in stool (B)</p> Signup and view all the answers

What is the diagnostic stage of Fasciolopsiasis?

<p>Eggs in stool (D)</p> Signup and view all the answers

What is the characteristic feature of the anterior end of Fasciola hepatica?

<p>A prominent cephalic cone (C)</p> Signup and view all the answers

How is Fasciolopsis buski typically transmitted to humans?

<p>By ingestion of metacercariae on aquatic plants (A)</p> Signup and view all the answers

What is the common name of the disease caused by Paragonimus westermani?

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

What is the first intermediate host of Fasciola spp?

<p>Lymnea philippinensis (snail) (B)</p> Signup and view all the answers

What is the characteristic feature of the egg of Fasciola gigantica?

<p>It is larger but very similar to Fasciola hepatica (C)</p> Signup and view all the answers

How do humans typically get infected with Paragonimus westermani?

<p>By ingesting raw or insufficiently cooked crabs (C)</p> Signup and view all the answers

What is the characteristic feature of the adult worm of Fasciolopsis buski?

<p>It is covered with spines (C)</p> Signup and view all the answers

What is the disease caused by Fasciola spp?

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

What is the characteristic feature of the intestinal caeca of Fasciolopsis buski?

<p>They are unbranched and reach up to the posterior end (A)</p> Signup and view all the answers

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