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During digestion, nutrients are absorbed across the wall of the small intestine into your...

Question:

During digestion, nutrients are absorbed across the wall of the small intestine into your bloodstream. Explain why the long length (20 ft.) and numerous finger-like projections along the internal surface of the small intestine are used to optimize this important function?

Digestive System:

The digestive system is composed of the GI tract along with the accompanying organs like the stomach, small and large intestines, liver and gall bladder. The job of the digestive system is to derive nutrition from the food.

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The nutrients that are derived from food have to be transported into the bloodstream. They cross the small intestine and enter into the blood. The...

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Assimilation of Food in the Digestive System

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Chapter 41 / Lesson 5
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