The small intestine has finger-like projections called villi, which significantly increase the surface area for absorption, aiding in the efficient uptake of digested food.
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The small intestine has finger-like projections called villi, which significantly increase the surface area for absorption, aiding in the efficient uptake of digested food.
The small intestine increases the efficiency of nutrient absorption through the presence of finger-like projections called villi. These villi significantly enhance the surface area available for absorption. Each villus contains microvilli, further amplifying the absorptive surface. This structural complexity allows for the efficient absorption of nutrients, including carbohydrates, proteins, and fats, into the bloodstream. Additionally, the small intestine is richly supplied with blood vessels, facilitating the transport of absorbed nutrients to various cells in the body. The combination of villi, microvilli, and a well-vascularized structure ensures the optimal absorption of digested nutrients, supporting overall nutrient utilization.