Answer:
Microscopic finger like projections of mucosa in the small intestine are called Villi.
Step-by-step explanation:
The interior membrane of small intestine have finger - like projection known as the villi, which helps to increase the surface area of the small intestine , which in turn increases the efficiency of the absorption of the vital nutrients, as the projections helps to increase the contact of the food.
Villi also facilitates the movement of food particles in the small intestine.
Hence,
Microscopic finger like projections of mucosa in the small intestine are called Villi.