Question

What three features are essential for absorptive surface

Answer 1

Answer:

However, three features of the mucosa and submucosa are unique. These features, which increase the absorptive surface area of the small intestine more than 600-fold, include circular folds, villi, and microvilli (Figure 2).

Answer 2

This enormous absorptive surface is provided by the unique structure of the mucosa, which is arranged in concentric folds that have the appearance of transverse ridges. ... Another feature of the mucosa that greatly multiplies its surface area is that of tiny projections called villi.

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