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The Villi are the almost microscopic, finger-like projections of the Small Intestine that give it a velvety appearance. The small intestine in concerned with digestion and Absorbtion of food. To absorb as much nutrients as possible in a given length of the intestinal tubing the maximum surface area possible must be present. This is what the villi are for, they increase the surface area by around 10 times allowing much more to be absorbed in the length of the intestine.

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15y ago
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12y ago

Villi aid with absorption and digestion by increasing the surface area of the intestinal wall. Within a villi, there are many more thousands of microvilli. This structure of microscopic means there is more area for absorption to take place. As a result digestion is improved.

A good way to look at this is by imagining a sponge. More water would be absorbed with a larger sponge than with a smaller one. The villi does this precisely; it increases the size of the absorption "sponge".

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13y ago

Villi have microvilli further where surface area for absorption is increased hundreds of times and hence more absorption of food.

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12y ago

By increasing the surface area of the intestinal wall.

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13y ago

The villi is finger like which into the inner hollow of the small ntestines and increase its surface area so the nutrient gets absorbed quickly

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12y ago

Villi are finger-like projections which greatly increase the surface area of the intestines, which is where nutrient absorption occurs

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15y ago

no

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Q: How do villi of the small intestine increase the rate of the nutrient absorption?
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