Biol 303 Class Notes

Biol 303 Class Notes - Class Notes 2/12/08 Parasitic Worms...

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Class Notes 2/12/08 Parasitic Worms Specialized for specific hosts o Must defend themselves and hide from hosts  Trematode Life Cycle (know that of blood fluke) Different sexes (male has ventral groove in which the female sits while  male is attached to blood vessel within intestines of host) Eggs laid and enter water supply from feces of host Hatch and develop into cilliated larvae – miracidium o Detects snails and infects snail host Sporocyst stage within snail Asexual reproduction within snail results in another typoe of mbcile  larvae – cercaria o Swims in water until finds human host Penetrates skin and blood vessels of human, esp intestines where it  develops into male and female  The disease is called -  Schistosomiasis How do you get rid of these? The hard part is getting rid of the snails, 
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This note was uploaded on 05/20/2008 for the course BIOL 303 taught by Professor Birchard during the Spring '08 term at George Mason.

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Biol 303 Class Notes - Class Notes 2/12/08 Parasitic Worms...

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