Question

The inner lining of the small intestine contains numerous villi.Give reason

Answer 1

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 much smaller than a single villus. The intestinal villi are much smaller than any of the circular folds in the intestine.

Answer 2

This so as the villi provides a larger area for food absorption there by making it possible for the small intestine to convert as much nutrients into simpler substances as it can