Platyhelminthes: Class Trematoda - PowerPoint PPT Presentation

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Platyhelminthes: Class Trematoda

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Platyhelminthes: Class Trematoda. male. oral sucker. ventral sucker. testes. gynecophoral canal ... Pseudotubercles of S. japonicum -- walls of small intestines; ... – PowerPoint PPT presentation

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Title: Platyhelminthes: Class Trematoda


1
Platyhelminthes Class Trematoda
Schistosoma spp.
male
oral sucker
ventral sucker
female
gynecophoral canal
testes
2
Schistosoma spp. eggs
3
Pseudotubercles of S. mansoni -- walls of large
intestines liver -- cirrhosis ? acsites --
esophagael varicies ? haematomesis -- abdominal
varicies
4
Pseudotubercles of S. japonicum -- walls of small
intestines liver ? ascites -- in brain most
severe form of schistosomiasis -- causes
paralysis, coma, dwarfism
5
PHYLUM PLATYHELMINTHES Class Cestoidea
6
PHYLUM PLATYHELMINTHE Class Cestoidea
Scolex attachment organ
Neck region of strobilization
Strobila w/ proglottids
Mature proglottids
7
PHYLUM PLATYHELMINTHES Class Cestoidea
8
Cestodes larval stages
Cysticercous larvae (bladder worms)
Plerocercoid larvae
9
Sparganosis caused by pleroceroids of D.
mansonoides
10
a. Taenia saginata beef tapeworm
-- worldwide -- up to 75 ft. in
length
11
T. saginata measly beef
12
Taenia solium pork tapeworm
-- 6-10 ft can reach 30 ft.
13
Cysticercosis in human muscle
14
Cysticercosis in eye and brain
15
Tapeworm Diet Pills
16
Echinococcus granulosus
hydatid worm
17
Hydatid cysts in herbivores
18
Hydatid cyst human liver
19
Hydatid cysts human brain
20
Hydatid cyst removal
Aspiration of hydatid fluid
Bile injected into cyst
21
Hydatid cyst removal
Removal of cyst wall repair of cyst cavity
Cyst membrane removed
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