Villi Folau

Question what is the role of villi in digestion solution increasing surface area of absorption villi are the numerous finger like projections, whose walls are richly supplied with blood capillaries and lymph. Absorption is achieved by its large length and by the presence of mucous membrane, microvilli and villi. The villi are known to provide more surface area within the small intestine for better absorption of the broken down digested food into the blood.

What’s the difference between villi and microvilli? Size of villi ranges between 0.5 to 1.6 mm while that of microvilli is about 1 µm in length. Additionally, villi are seen on the mucous membrane, specifically in.

The finger-like projections known as villi, drastically increase the surface area of the small intestine for greater absorption of the digested food. Villi are small finger like projections located in the walls of the small intestine. Each villi is composed of a thin epithelium, blood capillary and a lymphatic vessel (lacteal).

Question how alveoli similar to villi solution both the alveoli in the lungs and villi in the small intestine are in direct contact with blood capillaries. Explain the location and function of villi from chapter 2 of ncert solutions for class 7 science.