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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?

Capillaria philippinensis Signup and view all the answers

What is the definitive host of Ancylostoma duodenale?

Human Signup and view all the answers

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

Capillaria philippinensis Signup and view all the answers

What is the habitat of Ascaris lumbricoides?

Small intestine Signup and view all the answers

What is the mode of transmission of Trichuris trichiura?

Ingestion of embryonated egg Signup and view all the answers

What is the life span of Ascaris lumbricoides?

1-2 years Signup and view all the answers

What is the diagnostic stage of Hookworms?

Rhabditiform larva Signup and view all the answers

What is the characteristic shape of Trichuris trichiura?

Japanese lantern, football and lemon shaped Signup and view all the answers

What is the common name of Ancylostoma duodenale?

American murderer Signup and view all the answers

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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Description

Test your knowledge of Ascaris Lumbricoides, a parasitic roundworm that infects the human small intestine. Learn about its habitat, diagnostic stage, mode of transmission, and more.