Compared to a monogastric animal’s stomach, the stomach of a horse:

Question

BlackTom AI · Accepted Answer

Exploring the comparative anatomy of the horse stomach versus a monogastric stomach requires weighing surface characteristics and functional design.
Option 1: 'Is designed for bout feeding' — While horses may eat in developing patterns including frequent small meals, the statement about being designed for bout feeding is overly simplistic and doesn't directly address stomach surface area or mucosal characteristics; it’s not a defining structural contrast.
Option 2: 'Breaks down feed more efficiently' — The horse stomach does not inherently break down feed more efficiently than typical monogastric stomachs; digestion efficiency depends on many factors such as acidity, enzyme activity, and passage rate, and this option makes a broad claim not tied to surface area differences.
Option 3: 'Has a greater portion of mucosal surface area' — If this were accurate, it would imply more mucosal lining relative to the stomach's total surface. However, the question centers on structural differences that influence surface proportions, and the common comparative point is not an expanded mucosal area but a different distribution that emphasizes non-mucosal aspects.
Option 4: 'Has a greater portion of non-mucosal surface area' — This aligns with the idea that, relative to some monogastric models, the horse stomach includes substantial non-mucosal or less-glandular regions, reflecting unique surface-area distribution. This option highlights a structural distinction rather than a functional claim about digestion rate or feeding patterns, making it the most consistent chosen contrast in this context.
In summary, the other options either address feeding behavior or broad digestion efficiency without tying to the specific surface-area distribution, whereas the correct statement specifically emphasizes the proportion of non-mucosal surface area in the horse stomach compared to a typical monogastric stomach.

ANSC20002_2025_SM2 Exam: Comparative Nutrition and Digestion (ANSC20002_2025_SM2)- Requires Respondus LockDown Browser

Compared to a monogastric animal’s stomach, the stomach of a horse:

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