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25 Cards in this Set
- Front
- Back
The common name of Trematodes are?
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Flukes
-flat, leaf-shaped organisms -hermaphroditic (except schistosoma) |
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Trematodes require a __________ host?
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Intermediate
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_____ is the definitive host in trematodes infections.
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Man
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The ______ is always 1st intermediate host.
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snail
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Trematode eggs are always _________.
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Operculated (except schistosoma)
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The organisms considered Trematodes are:
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-Fasciolopsis buski
-Fasciola hepatica -Clonorchis sinensis -Paragonimus westermani |
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Paragonimus westermani is commonly known as:
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Oriental Lung Fluke
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Clonorchis sinensis is commonly known as:
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Chinese Liver Fluke
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Fasciola hepatica is commonly known as:
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Liver fluke
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Fasciolopsis buski is commonly known as:
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Giant Intestinal Fluke
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The infective stage of Fasciolopsis buski is the ingestion of ___________>
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raw aquatic vegetation with encysted metacercaria
Ex. water chestnuts |
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The diagnostic stage of Fasciolopsis buski is the __________
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demonstration of eggs in feces
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Diarrhea and epigastic pain are clinical symptoms of ____________.
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Fasciolopsis buski
*Symptoms relate to number of worms present* |
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What part of world is Fasciolopsis buski found?
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Asia
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The infective stage of Fasciolopsis hepatica isthe ingestion of raw aquatic vegatation with ________________.
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encysted metacercaria
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Diagnostic stage of Fasciola hepatica?
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Demonstration of eggs in feces
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Larvae elicit inflammatory response in liver, stone formation, eosinophilia during larval migration are clinical symptoms of what type of infection?
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Fasciola hepatica
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Reservior hosts of F. hepatica?
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sheep and cattle
=high incidence in sheep raising countries |
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Ingestion of raw fish infected with metacercariae
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Clonorchis sinensis
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Operculated egg with shoulders and small knob at abopercular end
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Clonorchis sinensis
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Trematode found in Japan, Vietnam, Korea, China, and Taiwan
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Clonorchis sinensis
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Human ingestion of crustacea (crabs, crawfish) infected with metacercariae
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Paragonimus westermani
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Diagnostic stage of which parasite is demonstration of egg in feces or sputum
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Paragonimus westermani
Operculated egg with shoulders and thick abopercular shell -Sputum has reddish-brown flecks resembling iron filings |
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Chronic cough and abundant mucus in heavy infections, high eosinophilia, and light infections are asymptomatic?
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Paragonimus westermani
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Trematode found in Japan, Korea, China, Philippines, and Southeast Asia?
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Paragonimus westermani
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