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24 Cards in this Set
- Front
- Back
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Dicrocoelium dendriticum |
Lancet fluke, adults found in bile ducts of sheep/goats, alters behavior of 2nd IH (ant) |
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Platynosomum fastosum |
Lizard poisoning fluke, adults found in bile ducts of cats |
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Fasciola hepatica |
Liver fluke of cattle, "cone-shaped" projection on adult, causes pipestem liver |
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Fascioloides magna |
Liver fluke of deer, deer-->aquatic snail |
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Paramphistomum and Cotylophoron |
Rumen flukes, juveniles are plug feeders |
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Helminthology |
Study of worms |
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Juvenile flukes migrate to liver and form closed cysts and eggs can't reach outside |
Fascioloides magna life cycle in cattle |
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Juvenile flukes migrate through abdominal cavity and cause death |
Fascioloides magna life cycle in sheep |
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Adult-->operculated eggs-->miracidium penetrate aquatic snail-->sporocyst-->redia-->cercaria-->meta cercaria encyst on vegetation and eaten |
Paramphistomum and Cotylophoron life cycle (similar to Fasciola hepatica) |
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Paragonimus kellicotti |
Most common fluke in small animal practice, adults found in fluid-filled cysts in lung of cats and dogs, often aberrant or erratic parasite Zoonotic |
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Adults-->operculated eggs-->miracidium penetrate aquatic snail-->sporocyst-->redia-->cercaria penetrate 2nd IH (crayfishes)-->metacercaria-->2nd IH ingested by DH |
Paragonimus kellicotti life cycle |
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Schistosomma sp. |
Dioecious flukes, males carry females in gynecophoric canal, unoperculated eggs with spine, causes Swimmers itch (zoonotic) |
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Adults-->unoperculated eggs-->miracidium penetrate aquatic snail-->cercaria penetrate DH--> juvenile flukes develop in lungs |
Schistosomma sp. life cycle |
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Schistosomiasis |
Number one helminthic disease of humans worldwide |
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Heterobilharzia americana |
Canine blood fluke, found in mesenteric veins of small and large intestines as well as portal veins of dogs, egg does not have spine |
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Trematodes |
Flukes |
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Cestoda |
Tapeworms |
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Nematoda |
Roundworms |
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Nematomorphs |
Horse hair worms (pseudo parasites) |
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Acanthocephala |
Thorny headed worms |
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Adults-->operculated eggs ingested by snail-->sporocyst-->redia-->cercaria ingested in slime ball by ant-->sheep eat ant |
Dicrocoelium dendriticum life cycle |
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Adults-->operculated eggs ingested by snail-->sporocyst-->redia-->cercaria ingested in slime ball by lizard-->cat eats lizard |
Platynosomum fastosum life cycle (similar to Dicrocoelium dendriticum) |
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Adult-->operculated eggs-->miracidium penetrate aquatic snail-->sporocyst-->redia-->cercaria-->meta cercaria encyst on vegetation and eaten |
Fasciola hepatica life cycle |
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Adult-->operculated eggs-->miracidium penetrate aquatic snail-->sporocyst-->redia-->cercaria-->meta cercaria encyst on vegetation and eaten |
Fascioloides magna normal life cycle ( similar to Fasciola hepatica) |
