Read the following statements with reference to the villi of small intestine.(i) They have very thin walls.(ii) They have a netw
ork of thin and small blood vessels close to the surface.(iii) They have small pores through which food can easily pass.(iv) They are finger-like projections.Identify those statements which enable the villi to absorb digested food. * (i), (ii) and (iv)
(ii), (iii) and (iv)
(iii) and (iv)
(i) and (iv)
Villi are finger-like outgrowths of the human intestine.
The main role of villi is to amplify surface area for rapid absorption of digested food. They have very tiny walls; the role of these walls is to pass digested nutrients through diffusion. These are directly connected to the blood vessels. Thus, the circulating blood can carry these nutrients away.