18 Questions
What is the habitat of the Strongyloides stercoralis in humans?
Duodenum
What is the characteristic of the ova of Strongyloides stercoralis?
Thin-shelled and transparent
In which stage of the life cycle of Strongyloides stercoralis is the infective stage?
Filariform
What is the primary method of diagnosis of Strongyloides stercoralis?
Recovery and identification of rhabditiform larvae in feces
What is the characteristic of the larvae of Strongyloides stercoralis in feces?
Similar to hookworm larvae
What is the main habitat of Strongyloides stercoralis in humans?
Duodenum
What is the characteristic feature of the parasitic adult female Strongyloides stercoralis?
Parthenogenetic
What is the morphology of the free-living female Strongyloides stercoralis?
Shorter esophagus
Which stage of Strongyloides stercoralis is non-feeding?
Filariform
What is the characteristic feature of the free-living male Strongyloides stercoralis?
Larger buccal cavity
What is the infective stage of Strongyloides stercoralis?
Filariform
What is the distinctive feature of the parasitic adult Strongyloides stercoralis?
Presence of chitinous, leaf-like processes
What is the primary mode of transmission of Anisakis species to humans?
Through the ingestion of infected crustaceans or fish
What is the infective stage of Anisakis species that is ingested by humans?
Filariform larva
What is the purpose of freezing the fish at -20°C for 24 hours?
To kill the Anisakis larvae in the fish
What is the stage of Anisakis species that develops in the vector?
Larval stage
What is the purpose of evisceration of fish soon after catch?
To remove the Anisakis larvae from the fish
What is the characteristic feature of the larval stage of Anisakis species?
Inconspicuous buccal cavity
Test your knowledge of Strongyloides stercoralis, a parasitic worm that infects humans. Learn about its life cycle, morphology, and habitats. Identify the differences between Strongyloides and hookworms.
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