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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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the class Turbellaria is known as
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Planarians (free-living flatworms)
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The class Trematoda is known as
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Flukes
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What are the three orders of Trematoda
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Aspidogoastrea
Monogenea Digenea |
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What makes up the order Aspidogoastea
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Ectoparasites of mollusks, fish, reptiles
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What make sup teh order Monogenea
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Monogenetic trematods, ectoparasites of fish
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What makes up the order Digenea
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Digenetic trematodes
Endoparasites of vertebrates (lung, liver flukes) |
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The class cestoda is known as
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Tapeworms
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Digenean trematodes general lifecycle
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Definitive host (adult worm, sexual reptro) - Ovum in environment - miracidium - 1st intermediate host - sporocyst/rediae (asexual repro) - cercaria in environment - 2nd intermediate host - metacercaria - transmission to definitive host
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What are two morphological characteristics of Digenean trematodes
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Suckers and/or holdfast organs
Reproductive organs (testes, ovary, vitellaria) |
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What type of gut do Trematodes have
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Incomplete
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What type of gut do Cestodes have
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No GI tract
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What type of outer layer do Platyhelminthes have
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Syncytial tegument
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What shape are Platyhelminths
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Bilateral, dorso-ventrally flattened
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What type of body cavity do Platyhelminths have
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Triploblastic but acoelomate
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What type of muscle layers do Platyhelminths have
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Longitudinal + circular muscle layer
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What sex are Platyhelminths
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Hermaphroiditic/monoecious (except blood flukes = dioecious)
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What do cestode ova contain
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Hexacanth (6 hooks on embryo, inside egg)
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Where are adult cestodes always found
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SI of definitive host
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What sex are cestodes
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Monoecious: all hermaphroditic with self and/or cross-fertilization
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Cestodes
What is a scolex |
Holdfast organ; usually suckers, retractable or non-retractable rostellum of hooks
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Cestodes
What is the neck |
Germinative region produces segments
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Cestodes
What is the strobila |
Series of maturing segments or proglottids; each proglottid is an individual reproductive unit
immature - mature - gravid proglottids in series (uterus filled with eggs) |
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Cestodes
What sexual organs make up each segment |
Ovaries, testes, genital pore
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Side 2: What are the two major cestode orders of veterinary importance
Side 3: What species are in these orders |
Cyclophyllidea
Pseudophyllidea |
Cyclophyllidea - Taeniidae, Diplylidiidae, Anoplocephalide, Davaineidae, Mesocestoididae
Pseudophyllidea - Spirometra, Diphyllobothrium |
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What is the lifecycle of Pseudophyllidea
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2 intermediate hosts
1st - copepod (coracidium) 2nd - vertebrate (plerocercoid) |
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