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The villi, microvilli, and circular folds of the large intestine all increase the surface area. True False

Question

The villi, microvilli, and circular folds of the large intestine all increase the surface area.

  • True
  • False
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Solution

Analysis of the Statement

  1. Understanding Structures: The villi and microvilli are primarily structures found in the small intestine, while the large intestine mainly contains circular folds (plicae circulares). Villi and microvilli are projections that increase the surface area for absorption.

  2. Role of Structures:

    • Villi and Microvilli: These structures play a key role in enhancing surface area to facilitate nutrient absorption in the small intestine.
    • Circular Folds: While the circular folds of the large intestine do contribute to surface area, they are less specialized for absorption compared to the villi and microvilli of the small intestine.
  3. Conclusion: The statement claims that all these structures increase the surface area of the large intestine. Since villi and microvilli are not predominant in the large intestine, the statement is misleading.

Final Answer

False. Only circular folds increase the surface area of the large intestine; villi and microvilli are primarily features of the small intestine.

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