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Platyhelminthes 扁平蠕蟲. Nemathelminthes 線形蠕蟲. NEMATODA (Roundworms) 線 蟲. TREMATODA (Flukes) 吸 蟲. CESTODA (Tapeworms) 絛 蟲. Human Parasitic Helminthes 人 體 寄 生 蠕 蟲. Parasitic Helminths 寄生蠕蟲. Platyhelminthes 扁平蠕蟲. TREMATODA (Flukes) 吸 蟲. CESTODA (Tapeworms) 絛 蟲. - PowerPoint PPT Presentation
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Human Parasitic Helminthes
Platyhelminthes Nemathelminthes Parasitic Helminths NEMATODA (Roundworms) TREMATODA (Flukes) CESTODA (Tapeworms)
Class Trematoda Phylum Platyhelminthes Subclass Digenea
(Monoecious)
Asexual Generation Multiplication of sporocyst or redia in 1st I.H.Reproduction & Life CycleAll flukes are oviparous (lay eggs)Eggs of all flukes, except for Schistosoma spp. areoperculated. Sexual Generation Production of eggs by adults in final host
1st Intermediate Host2nd Intermediate Host Crustacean Water plants Fishes Insects Sporocyst Miracidium Cercaria Redia General Trematode Life CycleFinal Host MammalsHumanAdult wormEgg
Intestinal Flukes Fasciolopesis buski Metagonimus yokogawi Heterophyes heterophyes Echinostoma ispp. Gastrodiscoides hominis Lung Flukes Paragonimus westermani Blood Flukes Schistosoma mansoni Schistosoma japonicum Schistosoma haematobium Schistosoma mekongi Schistosoma intercalatum Liver Flukes Clonorchis sinensis Opisthorchis felineus Opisthorchis viverrini Fasciola hepatica Dicrocoelium dentriticum Trematodes Eurytrema spp.