What does San Jiao of the human body refer to

It is one of the six viscera. In the body's internal organs, the three jiao is the largest, is standardized, from the location of the points, the upper jiao above the diaphragm, including the heart and lungs. Below the diaphragm and above the umbilicus are intermediate foci, including the spleen and stomach.

Below the umbilicus is the lower jiao, including the liver and kidneys. The specific functions of the San Jiao are to preside over the qi, the general division of the body's qi and chemical activities (yuan qi is the driving force of the organization's qi and chemical activities, and the San Jiao passes the yuan qi and relates to the normal operation of the qi and chemical functions of the whole body); and to serve as the pathway for the operation of the body's water and liquids.

The main function of the San Jiao is to preside over the transportation of qi and the transportation of water.