Difference between revisions of "Strongyloidea"

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#REDIRECT[[:Category:Strongyloidea]]
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{{toplink
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|backcolour =
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|linkpage =Parasites
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|linktext =PARASITES
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|pagetype=Bugs
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|sublink1=Nematodes
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|subtext1=NEMATODES
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}}
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== General Appearance ==
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[[Image:Strongyloides stercoralis 2.jpg|thumb|right|150px|''Strongyloides stercoralis'' - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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[[Image:Strongyloides stercoralis.jpg|thumb|right|150px|''Strongyloides stercoralis'' - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
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[[Image:Strongyloides larvae.jpg|thumb|right|150px|''Strongyloides'' larvae - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
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[[Image:Strongyloides.jpg|thumb|right|150px|''Strongyloides'' - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
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*Bursate
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*Large buccal capsule
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*Relatively short (typically 1-5cm) but stout
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*Heads often have characteristic features - teeth or cutting plates
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== General Life-Cycle ==
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*Like that of the trichostrongyloids (eggs are also 'typical strongyle eggs'), but:
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**L3 → L4 → adult (typically occurs in the large intestine)
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**Larvae penetrate the mucosal wall and elicit nodule formation
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**Larvae of some species migrate around the body
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**Prepatent period varies between species from 3 weeks to over 6 months
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[[Strongylus vulgaris]]
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[[Peritoneal Cavity Inflammatory - Pathology#In sheep|Peritonitis in sheep]] by penetration of intestines by larvae of ''Oesophagostomum columbianum''
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''Strongylus edentatus'' and ''Strongylus equinus'' migrate through [[Peritoneal Cavity Parasitic - Pathology]]
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''Stephanuris dentatus'' causes peritonitis in pigs [[Peritoneal Cavity Parasitic - Pathology]] and may cause cysts in the [[Pancreas Parasitic - Pathology|pancreas]]
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''Syngamus laryngeus'' in [[Respiratory Parasitic Infections - Pathology#Syngamus laryngeus|larynx]] of cattle

Revision as of 19:09, 15 January 2010



Infectious agents and parasitesWikiBugs Banner.png
PARASITES
NEMATODES



General Appearance

Strongyloides stercoralis - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine
Strongyloides stercoralis - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona
Strongyloides larvae - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona
Strongyloides - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona
  • Bursate
  • Large buccal capsule
  • Relatively short (typically 1-5cm) but stout
  • Heads often have characteristic features - teeth or cutting plates

General Life-Cycle

  • Like that of the trichostrongyloids (eggs are also 'typical strongyle eggs'), but:
    • L3 → L4 → adult (typically occurs in the large intestine)
    • Larvae penetrate the mucosal wall and elicit nodule formation
    • Larvae of some species migrate around the body
    • Prepatent period varies between species from 3 weeks to over 6 months

Strongylus vulgaris

Peritonitis in sheep by penetration of intestines by larvae of Oesophagostomum columbianum

Strongylus edentatus and Strongylus equinus migrate through Peritoneal Cavity Parasitic - Pathology

Stephanuris dentatus causes peritonitis in pigs Peritoneal Cavity Parasitic - Pathology and may cause cysts in the pancreas

Syngamus laryngeus in larynx of cattle