2.31 describe the structure of a villus and explain how this helps absorption of the products of digestion in the small intestine

Structure and adaptions of a Villus:

·         Close proximity to capillaries to cell layer allows absorbed nutrients to immediately enter the bloodstream

·         Microvilli: increase surface area to volume ratio and helps to deliver nutrients to villus surface

·         One cell layer: allows nutrients to diffuse easily from small intestine to the blood supply