Digested nutrients pass into the blood vessels in the Wall of the intestine through a process of diffusion. The function of the plicae circulares , the villi, and the microvilli is increase amount of surface area available for the absorption of nutrients.
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Explanation:
The innermost layer of the small intestine has small finger-like foldings called villi.
The villi produce numerous microscopic projections called microvilli giving a brush border appearance.
These above modifications increase surface area enormously for absorption
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Answer:
Digested nutrients pass into the blood vessels in the Wall of the intestine through a process of diffusion. The function of the plicae circulares , the villi, and the microvilli is increase amount of surface area available for the absorption of nutrients.