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Tapeworm InfestationBelow is a free term papers summary of the paper "Tapeworm Infestation." If you sign up, you can be reading the rest of this term papers in under two minutes. Registered users should login to view this term paper.
Tapeworm Infestation Charlotte Cox Causative agent: Tapeworms are parasitic Helmiths of the Phylum Platyhelminthes (Flatworms) and Class Cestodes. They include Taenia saginata (beef tapeworm), Taenia solium (pork tapeworm) and Diphyllobothrium latum and Echinococcus granulosus . Anatomy: Scolex (head) with suckers, sometimes hooks. Proglottids -body segments continuously produced by the scolex which contain both testes and ovaries that mature as they move away from scolex to produce eggs. Taenia tapeworms can live up to 25 yrs. and grow to 18 ft. D. latum have been found as long as 32 ft. and can produce millions of eggs per day. Tapeworms lack a digestive system but obtain food by absorbing it through their cuticle. Diseases and Symptoms: Usually, none at all - in fact, infection might never be known. Can cause blockage in digestive tract, appendicitis. If the eggs hatch in a human, the larvae may cross the intestinal lining and enter the bloodstream, migrate to different organs in the body and develop into cysticerci (5 mm. - 8 in.). D. latum larvae that infect people are called plerocercoids. Depending on location and number of cysticerci, pathology can result. Ex: Cysticerosis- (Taenia genus): eyes - blindness; spinal chord - paralysis; brain - neurocysticerosis with similar symptoms to brain tumor, causing traumatic neurological damage. Persons of Sandinavian heritage are susceptible. Diphyllobothriasis - (D. latum): Abdominal distention, flatulence, cramping, diarrhea and sometimes anemia parasite has a high affinity for vitamin B12) Hydatidosis -(E. granulosus): Instead of cysticerci, egg develops into a hyatid cyst. Have been found large enough to contain four gallons of fluid. Damage is due to cysts... This is not the end of the termpaper! Register below to see the complete version of this term paper.
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