Difference between revisions of "Cestodes"

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#REDIRECT[[:Category:Cestodes]]
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== Introduction ==
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[[Image:Taenia proglottid.jpg|thumb|right|150px|Taenia proglottid - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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[[Image:Cestoda.jpg|thumb|right|150px|Cestoda Groups - Courtesy of C. Hermosilla, Royal Veterinary College]]
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This class differs from the Trematodes in that they have a tape-like body, with no alimentary canal. A cestode (tapeworm) is a chain (strobila) of progressively maturing, independent reproductive units (segments or proglottids) anchored at one end to the intestinal wall by a hold-fast organ (scolex). Each segment contains one set, or sometimes two sets, of male and female reproductive organs.
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Tapeworm superfamilies:
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[[Pseudophyllidea]]
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[[Cyclophyllidea]]
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*Occlusion of pancreatic ducts sometimes happens [[Pancreas Parasitic - Pathology|Pancreas - parasitic]]
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*''Mesocestoides'' in carnivores causing [[Peritoneal Cavity Parasitic - Pathology|pyogranulomatous peritonitis]]
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*''Echinococcus granulosus'' in hydatid disease of [[Respiratory Parasitic Infections - Pathology#Hydatid cysts|lungs]]

Revision as of 13:13, 12 January 2009



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PARASITES
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Introduction

Taenia proglottid - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine
Cestoda Groups - Courtesy of C. Hermosilla, Royal Veterinary College

This class differs from the Trematodes in that they have a tape-like body, with no alimentary canal. A cestode (tapeworm) is a chain (strobila) of progressively maturing, independent reproductive units (segments or proglottids) anchored at one end to the intestinal wall by a hold-fast organ (scolex). Each segment contains one set, or sometimes two sets, of male and female reproductive organs.

Tapeworm superfamilies:

Pseudophyllidea

Cyclophyllidea

  • Echinococcus granulosus in hydatid disease of lungs