Difference between revisions of "Strongylus vulgaris"
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| − | | | + | |linkpage =Parasites |
| − | | | + | |linktext =PARASITES |
| − | | | + | |pagetype=Bugs |
| − | + | |sublink1=Strongyloidea | |
| − | + | |subtext1=STRONGYLOIDEA | |
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| + | <br> | ||
| − | + | ''Strongylus vulgaris'' is a parasite of horses. | |
| − | ''Strongylus vulgaris'' is a | ||
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| − | + | ==Appearance== | |
| + | *Dark red | ||
| + | *Well developed buccal capsule in male | ||
==Life cycle== | ==Life cycle== | ||
| − | + | *Eggs shed in faeces onto pasture | |
| − | + | *Develop into L3 larvae | |
| − | + | *Ingested by horse | |
| − | + | *Penetrate intestine mucosa | |
| − | L4 | + | *Moult in 7 days to L4 in sub-mucosa |
| − | + | *L4 migrate to cranial mesenteric artery | |
| − | + | *Develop over months | |
| − | + | *Moult to L5 | |
| − | + | *Migrate to caecum and colon | |
| − | + | *Form nodules around the larvae | |
| − | + | *Nodules rupture into the lumen of the intestine | |
| − | + | *Adults live in the caecum and colon | |
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| − | [[ | + | ==Pathogenesis== |
| + | By larvae: | ||
| + | *Disruption to endothelium of blood vessel | ||
| + | * May cause [[Intestines Vascular Disturbances - Patholgoy#Arterial thromboembolism |arterial thromboembolism]] in the horse. | ||
| + | *May cause intestinal infarcts, see [[Thrombosis - Pathology#Intestinal Infarcts|General Pathology]] | ||
| + | By adults: | ||
| + | *Accidental damage to blood vessels as a result of feeding on intestinal mucosa | ||
Revision as of 20:18, 15 January 2010
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This article is still under construction. |
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Strongylus vulgaris is a parasite of horses.
Appearance
- Dark red
- Well developed buccal capsule in male
Life cycle
- Eggs shed in faeces onto pasture
- Develop into L3 larvae
- Ingested by horse
- Penetrate intestine mucosa
- Moult in 7 days to L4 in sub-mucosa
- L4 migrate to cranial mesenteric artery
- Develop over months
- Moult to L5
- Migrate to caecum and colon
- Form nodules around the larvae
- Nodules rupture into the lumen of the intestine
- Adults live in the caecum and colon
Pathogenesis
By larvae:
- Disruption to endothelium of blood vessel
- May cause arterial thromboembolism in the horse.
- May cause intestinal infarcts, see General Pathology
By adults:
- Accidental damage to blood vessels as a result of feeding on intestinal mucosa