Difference between revisions of "Strongyloidea"

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#REDIRECT[[:Category:Strongyloidea]]
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|linkpage =Parasites
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|linktext =PARASITES
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|sublink1=Nematodes
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|subtext1=NEMATODES
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== General Appearance ==
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*Bursate.
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*Relatively short (typically 1-5cm) but stout.
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*Heads often have characteristic features.
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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 into 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 3weeks to 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 00:31, 23 December 2008



Infectious agents and parasitesWikiBugs Banner.png
PARASITES
NEMATODES



General Appearance

  • Bursate.
  • Relatively short (typically 1-5cm) but stout.
  • Heads often have characteristic features.


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 into mucosal wall and elicit nodule formation.
  • Larvae of some species migrate around the body.
  • Prepatent period varies between species from 3weeks to 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