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Small intestine has small finger like structures on its surface called the Villus(plural - Villi). These villus increase the area of absorption. They have small hair like substance on their surface-the Microvilli.
Villus absorbs minerals from food and mixes them in the blood.
Inside the villi there is network of blood vessels and a lymph vessel k own as the Lacteal.
Villi is made up Epithelial cells.
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  small intestine has small finger like projections called villi(this increases the suface area for the absorbtion of food materials),which is highly supplied with blood vessals.as food pass through small intestine,these villi absorb it and through blood vessals it is distributed to al parts of the body. 
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