Small Intestine what is its function
Functions of the small intestine. The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food.Digestion involves two distinct parts.The first is mechanical digestion by chewing, grinding, churning and mixing that takes place in the mouth and the stomach.he main function of the small intestine is absorption of nutrients and minerals from food. Digestion involves two distinct parts. The first is mechanical digestion by chewing, grinding, churning and mixing that takes place in the mouth and the stomach.