HUMAN NUTRITION

Detailed explanation-1: -One of the main functions of villi is to absorb nutrients from the lumen in the small intestine. Since the walls of the villi are only one cell thick, the nutrients are able to quickly pass from the villi into the blood. They do this using a process called diffusion.

Detailed explanation-2: -The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb nutrients from the liquid mixture called chyme produced in the stomach from the food we eat. Biology books usually have a detailed picture of the villi.

Detailed explanation-3: ->The main function of villi is to increase the surface area of the small intestine wall which helps in absorption of the digested food. This increased area for absorption is very useful as digested compounds like monosaccharide and amino acids pass into the semipermeable villi by diffusion.

Detailed explanation-4: -Villi That Line the Walls of the Small Intestine Absorb Nutrients. Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system. Villi contain capillary beds, as well as lymphatic vessels called lacteals.

Detailed explanation-5: -Villi are finger-like projections which are richly supplied with blood vessels. They are present in the inner lining of the small intestine and help in the absorption of nutrients by increasing the surface area for absorption.