Question

When and where do chorionic villi appear in humans ? State their function.

Answer 1

in small intestine.functions : it absorbs nutrients and minerals

Answer 2

Function of villi:-

increase the surface area for absorption

The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body, where it is utilised for obtaining energy,building up new tissues and the repair of old tissues.