Question

Write short notes on villus. [3 MARKS]

Answer 1

Each point: 1 Mark

1. A microscopic outgrowth on the surface of some tissues and organs, which serves to increase the surface area of the organ is called villi.
2. Numerous villi line the interior of the small intestine.Their shape may vary from finger-like (in the duodenum) to spade-like (in the ileum).
3. Intestinal villi are specialized for the absorption of soluble food material. Each villus contains blood vessels and a lymph vessel.