Question:
Abnormal gastric distension causes dog sitting posture which is common among
Abnormal gastric distension causes dog sitting posture which is common among
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Equine Colic Postures: Dog-sitting posture $\rightarrow$ Acute Gastric Dilatation. Stretching out (sawhorse posture) $\rightarrow$ Laminitis or Tetanus.
Updated On: Sep 7, 2026
- Cattle
- Sheep and Goat
- Pigs
- Horses
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Equine gastrointestinal anatomy features a small stomach and non-functional vomiting reflex; acute gastric dilatation causes diaphragmatic compression and diagnostic dog-sitting posture.
Step 2: Detailed Explanation:
In equine clinical medicine:
- Horses have a relatively small stomach ($8 - 15\text{ litres}$) with a strong cardiac sphincter that prevents vomiting (emesis).
- Severe Acute Gastric Dilatation (caused by grain overload, fermentable feeds, or small intestinal ileus) causes massive painful intragastric pressure against the diaphragm.
- To relieve respiratory pressure on the diaphragm and reduce abdominal pain, the horse adopts a pathognomonic 'Dog-Sitting Posture' (sitting on haunches with extended forelimbs).
Step 3: Final Answer:
Thus, dog sitting posture due to gastric distension is common in Horses, corresponding to option (D).
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