Ascaris Lumbricoides: Parasitology Quiz

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Questions and Answers

What is the common name of the parasitic worm that inhabits the mucosa and submucosa of the duodenum and jejunum?

  • Hookworm
  • Pinworm
  • Thread Worm (correct)
  • Pudoc Worm

Which parasitic worm has a habitat in the large intestine?

  • Enterobius vermicularis (correct)
  • Capillaria philippinensis
  • Ancylostoma duodenale
  • Necator americanus

What is the mode of transmission of Strongyloides stercoralis?

  • Ingestion of raw or improperly cooked infected fish
  • Direct hand-to-mouth contact
  • Ingestion of larvae
  • Skin penetration by larva (correct)

Which parasitic worm has a diagnostic stage of unembryonated egg?

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

What is the definitive host of Ancylostoma duodenale?

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

Which parasitic worm has a shape resembling a guitar or a flattened peanut?

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

What is the habitat of Ascaris lumbricoides?

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

What is the mode of transmission of Trichuris trichiura?

<p>Ingestion of embryonated egg (C)</p> Signup and view all the answers

What is the life span of Ascaris lumbricoides?

<p>1-2 years (B)</p> Signup and view all the answers

What is the diagnostic stage of Hookworms?

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

What is the characteristic shape of Trichuris trichiura?

<p>Japanese lantern, football and lemon shaped (C)</p> Signup and view all the answers

What is the common name of Ancylostoma duodenale?

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

Flashcards

Common name for parasitic worm in duodenum and jejunum?

Thread Worm

Parasitic worm in the large intestine?

Enterobius vermicularis

Mode of transmission of Strongyloides stercoralis?

Skin penetration by larva

Parasitic worm with unembryonated egg diagnostic stage?

Capillaria philippinensis

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Definitive host of Ancylostoma duodenale?

Human

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Parasitic worm with a guitar or flattened peanut shape?

Capillaria philippinensis

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Habitat of Ascaris lumbricoides?

Small intestine

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Mode of transmission of Trichuris trichiura?

Ingestion of embryonated egg

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Lifespan of Ascaris lumbricoides?

1-2 years

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Diagnostic stage of Hookworms?

Rhabditiform larva

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Characteristic shape of Trichuris trichiura?

Japanese lantern, football and lemon shaped

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Common name of Ancylostoma duodenale?

American murderer

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Study Notes

Parasitic Worms Overview

  • Common name for the parasitic worm inhabiting the duodenum and jejunum: Hookworm
  • Parasitic worm residing in the large intestine: Trichuris trichiura (whipworm)

Strongyloides stercoralis

  • Mode of transmission: Fecal-oral route, often through contaminated soil or water.

Diagnostic Stages

  • Parasitic worm with a diagnostic stage of unembryonated egg: Trichuris trichiura
  • Diagnostic stage of Hookworms: Rhabditiform larvae

Hosts and Lifespan

  • Definitive host of Ancylostoma duodenale: Humans
  • Lifespan of Ascaris lumbricoides: Can live for 1 to 2 years in the human host.

Morphological Features

  • Parasitic worm with a shape resembling a guitar or flattened peanut: Ancylostoma duodenale
  • Characteristic shape of Trichuris trichiura: Long and thin, resembling a whip, with a tapered end.

Additional Parasitic Considerations

  • Habitat of Ascaris lumbricoides: Primarily the small intestine, where it resides and matures.
  • Mode of transmission of Trichuris trichiura: Ingestion of eggs from contaminated food or soil.

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