Question

what is villi
The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.​

Answer 1

Answer:

Intestinal villi (singular: villus) are small, finger-like projections that extend into the lumen of the small intestine. Each villus is approximately 0.5–1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which collectively form the striated or brush border. Each of these microvilli are about 1 µm in length, around 1000 times shorter than a single villus. The intestinal villi are much smaller than any of the circular folds in the intestine.

Intestinal villus

Micrograph of the small intestine mucosa showing villi – top half of image. H&E stain

Answer 2

Answer:

The tiny projections on the inner surface of the small intestine which help absorbing the digested food are called villi. These helps to increase the surface area of intestinal walls. hope it helps you mark the answer as a brainliests answer.