The main functions of the small intestine

The human digestive system is very large, and there are many important organs distributed in this huge digestive system. Among them, the role of the small intestine in the digestive system cannot be ignored, because the small intestine is mainly located between the stomach and the large intestine of the human body, and plays a major role in connecting the stomach and the large intestine. However, in life, many people ignore the important role of the small intestine in the body. Today, let us popularize the important role of the small intestine in the body.

The functions of the small intestine mainly include the following:

1. Digestion is the most important function of the small intestine. Generally, the food we eat will be digested when passing through the small intestine. After the digestion of the small intestine, these foods will be broken down into small molecules that can be easily absorbed by our body. The food we eat stays in the small intestine for several hours, so this also provides ample time for the small intestine to digest.

2. In addition, the small intestine also has a very important absorption function. The small intestine is the most important absorption organ in our body. Various nutrients can be absorbed by our body through the villi in the small intestine. Inside the villi of the small intestine there are capillaries, lymphatic vessels, capillary networks, nerve networks, smooth muscle fibers, etc. This tissue works together to achieve the effect of absorbing nutrients in food.

3. Finally, the small intestine also has a secretory function. This tissue organ can secrete a substance called small intestinal fluid. The small intestinal fluid contains various microorganisms, multiple digestive enzymes and desquamated intestinal epithelial cells. A large amount of small intestinal fluid can dilute the digestion products, thereby promoting the absorption of the small intestine.

The above is an introduction to some of the most important functions of the small intestine. Through the above introduction, I believe everyone has a deep understanding of the importance of the small intestine. Therefore, in real life, we must pay attention to cultivating good daily eating habits and living behavior habits to effectively protect our health, so as to effectively protect the health of the small intestine and avoid damage to the small intestine.