Rumen motility in vagal indigestion is described as?

• A. Increased initially then decreased (hypomotility)
• B. Decreased initially then increased
• C. No change in motility
• D. Constant hypermotility

Answer: (A)

Rumen motility in vagal indigestion changes as the disease progresses. The vagus nerve helps coordinate the rumen’s contractions and the eructation reflex. When vagal function starts to fail, the rumen initially responds with more vigorous contractions as a reflex attempt to clear distension and move gas. But as distension grows and neural control becomes more compromised, the contractions weaken and become irregular, leading to overall hypomotility.

That dynamic explains why the best description is increased initially then decreased: an early burst of activity gives way to a later decline in motility as the condition progresses. It wouldn’t fit to say motility stays consistently high, or that it starts with decreased activity, or that there’s no change at all, because the motility pattern clearly evolves from hypermotile to hypomotile with time.