What are Large and Small Intestine in Human Body?

What are Large and Small Intestine in Human Body?

Small Intestine:

As food leaves our stomach, it is passed on to the small intestine which is a long, thin tube coiled inside our abdomen. Final digestion of carbohydrates, fats and proteins occurs in the small intestine. Three organs help in the digestion of food here, these are the liver pancreas and wall of the small intestine. The liver provides bile salts to make fats easier to adsorb. The pancreas and intestinal walls secrete juices to digest the remaining food.

The absorption of the digested food also occurs in the last part of small intestine. The inner surface of small intestine has many finger-like structures called villi. The digested food passes into the blood through the walls of the villi.

The blood carries food particles to all parts of the body.

Large Intestine:

The undigested part of the food passes into the large intestine. Here the undigested food has a large amount of water. The main job of large intestine is to absorb extra water. The undigested food becomes solid and is called faces, pass the faeces out of our body through the anus.