The components of the digestive system

For the human body, if there is a problem with the digestive system, the situation is very serious, because the digestive system is mainly used to absorb the nutrients needed by the human body and excrete waste that the human body does not need. Its functions need to be interconnected. However, many friends do not know much about the composition of the digestive system and do not know its specific functions and effects.

In fact, the composition of the digestive system is quite complex. Many friends think that it only consists of two parts: the stomach and intestines. This understanding is completely wrong. In order to let you better understand the composition of the digestive system, this article will make a detailed analysis of its composition for you.

1. Structure of the digestive system

The human digestive system consists of two major parts: the digestive tract and the digestive glands.

The digestive tract includes the mouth, pharynx, esophagus, stomach, small intestine (including duodenum, jejunum, and ileum) and large intestine (including cecum, appendix, colon, and rectum). In clinical practice, the digestive tract is often divided into the upper digestive tract (the part above the duodenum) and the lower digestive tract (the part below the duodenum).

The digestive glands include oral glands, liver, pancreas, and many small glands on the walls of the digestive tract. Their main function is to secrete digestive juices.

2. Function of the digestive system

Throughout its life activities, the human body must absorb nutrients from the outside world as a source of energy for its life activities in order to meet the needs of a series of metabolic activities such as human development, growth, reproduction, and tissue repair. The organs of the human digestive system work in coordination to physically and chemically digest food taken from the outside, absorb its nutrients, and excrete food residues from the body. It is an important system to ensure the normal metabolism of the human body.

After understanding the composition and functions of the digestive system, I believe you must have understood the importance of the digestive system to the human body. In fact, many clinical diseases are caused by problems with the human digestive system, such as malnutrition, anemia, etc. These are problems caused by a poor digestive system.