A villus is a small, finger-like projection found in the lining of the small intestine. It is responsible for increasing the surface area available for the absorption of nutrients during the digestion process. Each villus contains blood vessels and lymphatic vessels, as well as specialized cells called enterocytes that aid in the absorption of nutrients such as carbohydrates, proteins, and fats. The presence of numerous villi in the small intestine greatly enhances its ability to absorb nutrients and facilitate their transport into the bloodstream for use by the body.

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