Platyhelminthes: Class Trematoda

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Platyhelminthes Class Trematoda
Schistosoma spp.
male
oral sucker
ventral sucker
female
gynecophoral canal
testes
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Schistosoma spp. eggs
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Pseudotubercles of S. mansoni -- walls of large
intestines liver -- cirrhosis ? acsites --
esophagael varicies ? haematomesis -- abdominal
varicies
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Pseudotubercles of S. japonicum -- walls of small
intestines liver ? ascites -- in brain most
severe form of schistosomiasis -- causes
paralysis, coma, dwarfism
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PHYLUM PLATYHELMINTHES Class Cestoidea
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PHYLUM PLATYHELMINTHE Class Cestoidea
Scolex attachment organ
Neck region of strobilization
Strobila w/ proglottids
Mature proglottids
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PHYLUM PLATYHELMINTHES Class Cestoidea
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Cestodes larval stages
Cysticercous larvae (bladder worms)
Plerocercoid larvae
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Sparganosis caused by pleroceroids of D.
mansonoides
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a. Taenia saginata beef tapeworm
-- worldwide -- up to 75 ft. in
length
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T. saginata measly beef
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Taenia solium pork tapeworm
-- 6-10 ft can reach 30 ft.
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Cysticercosis in human muscle
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Cysticercosis in eye and brain
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Tapeworm Diet Pills
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Echinococcus granulosus
hydatid worm
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Hydatid cysts in herbivores
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Hydatid cyst human liver
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Hydatid cysts human brain
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Hydatid cyst removal
Aspiration of hydatid fluid
Bile injected into cyst
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Hydatid cyst removal
Removal of cyst wall repair of cyst cavity
Cyst membrane removed