Villi increase surface area for diffusion, have thin walls to decrease diffusion distance, a good blood supply to maintain a concentration gradient, and microvilli to further enlarge the surface area for nutrient absorption.
As vilosidades intestinais aumentam a área de superfície para difusão, têm paredes finas para diminuir a distância de difusão, um bom suprimento sanguíneo para manter um gradiente de concentração e microvilosidades para aumentar ainda mais a área de superfície para a absorção de nutrientes.
| Front | What are properties of the villi |
|---|---|
| Back | Increase surface area for diffusion Thin-walled so they decrease diffusion distance Good blood supply to maintain a concentration gradient. Have microvilli to increase surface area for diffusion of molecules. |
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