Difference between revisions of "Schistosoma"

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*On release, the cercariae swim in water and actively seek their final host, which they enter by skin penetration
 
*On release, the cercariae swim in water and actively seek their final host, which they enter by skin penetration
 
**There is therefore no metacercaria stage
 
**There is therefore no metacercaria stage
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==Test yourself with the Trematodes Flashcards==
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[[Trematodes_Flashcards|Trematodes Flashcards]]
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[[Category:Trematodes]]
 
[[Category:Trematodes]]
  
 
[[Category:To_Do_-_Parasites]]
 
[[Category:To_Do_-_Parasites]]

Revision as of 17:11, 20 August 2010

Schistosoma Species

  • The schistosomes are also known as "blood-flukes"
  • There are several important species producing serious human and animal disease in the tropics
  • The pathology is mostly associated with the passage of eggs through the liver, urinary bladder or intestinal wall (depending on the predilection site of the fluke)
  • As their common name suggests, the adults live in blood vessels
  • Unusually for a trematode, the sexes are separate
  • The smaller female lies enveloped by the male
  • The eggs of most species have spikes to assist their passage through host tissue to get into faeces or urine (depending on predilection site)
  • The intermediate hosts are water snails
  • On release, the cercariae swim in water and actively seek their final host, which they enter by skin penetration
    • There is therefore no metacercaria stage

Test yourself with the Trematodes Flashcards

Trematodes Flashcards