Question

small intestine absorb nutrient by what

Answer 1

Welcome to OpenStudy ^_^ Btw, nice long name :D hehe.

I found this:

In order for enough nutrients to be absorbed into the body, it must come in contact with large numbers of intestinal cells which are folded like gathered skirts. Each of these cells contains thousands of tiny finger-like projections called villi, and each villus contains microscopic microvilli. In one square inch of small intestine, there are about 20,000 villi and ten billion microvilli. Each villus brings in fresh, oxygenated blood and sends out nutrient-enriched blood. The villi sway constantly to stir up liquefied food and remove the nutrients, which can be absorbed and then passed through the membranes of the villi into the blood and lymph vessels.

Answer 2

Here's the link: http://www.innerbody.com/image_digeov/dige10-new3.html

Answer 3

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