(1) Mainly engaged in transportation and chemical transportation, that is, transshipment transportation; Digestion and absorption. Spleen governs transportation, which means that the spleen has the physiological function of transforming Shui Gu (food and drink) into fine substances and transferring them to the whole body. The transport function of spleen can be divided into two aspects: transporting Shui Gu and transporting water and liquid.

Transporting Shui Gu to Shui Gu means digesting and absorbing food and drinks. After eating a human stomach, the digestion and absorption of food is actually carried out in the stomach and small intestine. However, to turn Shui Gu into subtle, we must rely on the transport function of the spleen. Similarly, it relies on the transport function of the spleen to "irrigate all directions" and disperse Shui Gu's essence to the whole body. Such as "Su Wen?" Eating qi into the stomach, dispersing essence in the liver ... turbid qi returning to the heart, overflowing essence returning to the pulse "and" drinking qi in the stomach, overflowing essence in the qi, losing essence in the spleen, dispersing essence in the spleen, returning to the lung "all indicate that the absorption of nutrients in the diet depends on the transport function of the spleen. This physiological function of spleen is Su Wen? Juelun said, "Spleen governs the stomach, and body fluids are also used." Therefore, if the Shui Gu subtle function of the spleen is vigorous, it can improve the digestion and absorption function of the body, provide sufficient nutrition for the generation of essence, qi, blood and body fluid, fully nourish the viscera, meridians, limbs, bones and muscles, fur and other tissues, and carry out normal physiological activities. On the other hand, if the subtle function of the spleen declines, that is, the spleen loses health, the digestion and absorption function of the body will be abnormal, and abdominal distension, loose stool, loss of appetite, and even burnout, emaciation, and lack of qi and blood biochemistry will occur. Therefore, the spleen and stomach are the foundation of the day after tomorrow and the source of qi and blood biochemistry.

Transport of water and liquid, also known as "transport of water and liquid", refers to the absorption, transport and distribution of water and liquid, and is an integral part of spleen's main transport. The absorption of nutrients in food and drinks mostly belongs to liquid substances. The so-called function of transporting and transforming water liquid is that the excess water absorbed from Shui Gu essence can be transferred to the lungs and kidneys in time, and it can be transformed into sweat and urine through the gasification function of the lungs and kidneys. Therefore, the spleen has a strong function of transporting fluid, which can prevent abnormal stagnation of fluid in the body and prevent the generation of pathological products such as dampness, phlegm and drinking. On the other hand, the dysfunction of spleen transport and transformation of water and fluid will inevitably lead to the stagnation of water and fluid in the body, resulting in pathological products such as dampness, phlegm and drinking, and even edema. So, Su Wen? The theory of the True Classics says that "all dampness and distension belong to the spleen", which is the source of spleen deficiency and phlegm turbidity and the mechanism of spleen edema.

Shui Gu and water are two main transport functions of spleen, which can be separated and inseparable. The transport function of the spleen is not only the main physiological function of the spleen, but also very important to the life activities of the whole human body, so it is called the spleen and stomach as the "acquired foundation" and the source of qi and blood biochemistry. In fact, it has important physiological significance for dietary nutrition and digestion and absorption function, which is highly summarized in theory. Therefore, Li Zhongzi said in "Required Reading for Doctors": "As soon as you have this body, you will have the spirit of grains, the nourishment of the stomach, the nourishment of the five internal organs, and the nourishment of blood. Human resources believe that the living are alive, so the foundation of the day after tomorrow is the spleen."

Spleen and stomach are "the foundation of the day after tomorrow" and are also of great significance in disease prevention and health preservation. For example, Li Dongyuan's spleen and stomach theory? The theory of spleen and stomach ascending and descending says: "All diseases are caused by the decline of spleen and stomach." Therefore, we should not only pay attention to diet and nutrition in daily life, but also be good at protecting the spleen and stomach; For example, when you are sick, you should not eat according to your illness, and you should also take care of your spleen and stomach when you take medicine. These are the concrete manifestations of spleen and stomach as the "foundation of the day after tomorrow" for disease prevention and health care.

(2) The transport function of clearing spleen is mainly clearing spleen. The so-called "rising" refers to the movement characteristics of temper, which is mainly rising, so it is also said that "temper dominates rising", and "Qing" refers to subtle essence such as Shui Gu. "Ascending Qing" means that Shui Gu's subtle nutrients are absorbed and transported to the heart, lungs and head, which transform qi and blood and nourish the whole body through the functions of the heart and lungs. Therefore, it is said that "strengthening the spleen can preserve health". Ascension and descent are contradictory movements of viscera and qi. The rise of spleen is relative to the decline of turbidity in stomach, that is, the rise of spleen and the decline of turbidity are relative, which is one aspect. On the other hand, the relationship between the ups and downs of viscera and the coordination and balance are important factors to maintain the relatively constant position of human viscera. Therefore, the function of clearing spleen is normal, and nutrients such as Shui Gu essence can be absorbed and distributed normally. As Li Dongyuan emphasized, when the temper rises, the vitality will be abundant, and the human body will begin to have opportunities; At the same time, due to the rise of temper, the internal organs of the body cannot droop. If the spleen is unclear, Shui Gu will not be able to transport qi and blood, and there will be symptoms such as fatigue, dizziness, abdominal distension and diarrhea. Therefore, "Su Wen? Yin and yang should be like a big picture: "Qing Qi at the bottom leads to diarrhea. "When the temper sinks, it can be seen that the anus is prolapsed for a long time, and even the viscera is drooping.

(3) The spleen governs blood, which means control and control, that is, the spleen has the function of controlling blood to spread in the meridians and preventing it from escaping outside the pulse. "Difficult?" Forty-two difficulties "cloud:" The spleen is covered with blood, warming the five internal organs. "The wrapping here means that the spleen has the function of wrapping blood, so as not to make it escape. In fact, it also shows that the spleen has the function of regulating blood. The main mechanism of spleen regulating blood is actually qi-fixing. For example, Shen Munan's synopsis of the golden chamber said: "The blood of the five internal organs depends entirely on the control of temper. "The reason why the spleen can control blood is closely related to the fact that the spleen is the source of qi and blood biochemistry. If the spleen has strong transport function, full of qi and blood, sound qi-fixing, and blood does not escape and bleed; On the other hand, if the spleen's transport function decreases, the blood and blood biochemistry is passive, the blood and blood deficiency, and the qi-fixing function decreases, leading to bleeding. However, because the spleen governs the ascending of the spleen, it is customarily called hyperemia, hematuria, metrorrhagia, etc.