1, the heart and small intestine are exterior and interior:
The heart meridian communicates with the small intestine meridian. If there is a fire in the heart meridian and the fire moves down to the small intestine, there will be symptoms such as short and red urine, dry stool and painful urethra.
2. Liver and gallbladder are both in exterior and interior;
Liver meridian is connected with gallbladder meridian, and bile is secreted by liver. If the liver function is damaged, it will hinder the normal secretion of bile. If bile secretion is abnormal, it will also damage the normal function of the liver. Therefore, hepatobiliary diseases often occur at the same time, such as cholecystitis and gallstones.
3. Spleen and stomach are exterior and interior:
Spleen meridian and stomach meridian are located in the middle jiao, and they are exterior and interior to each other. Spleen meridian ascending, like moistening dryness, evil dryness. If the spleen meridian sinks, there may be symptoms of dizziness, fatigue and loss of appetite. Stomach meridian descending, like dryness and hate dampness. If the stomach meridian runs upward, it will lead to indigestion, nausea and vomiting. Pathologically, spleen and stomach are often treated together.
4, lung and large intestine:
Stagnation of lung meridian will lead to obstruction of large intestine and dry stool. On the other hand, obstruction of large intestine can also cause lung dysfunction, leading to cough and shortness of breath.
5, kidney and bladder:
Deficiency of kidney yang may weaken bladder function and lead to frequent urination. On the contrary, the bladder is damp and hot, which may damage the kidney and lead to hematuria.
Organ profile:
The small intestine is located in the abdomen, its upper end is connected with pylorus and stomach, and its lower end is connected with the large intestine through the orifice. It is the main place for food digestion and absorption, and it is divided into three parts: duodenum, jejunum and ileum. Digestion of small intestine is very important. After the chemical digestion of pancreatic juice, bile and intestinal juice in the small intestine and the mechanical digestion of small intestine movement, the food basically completes the digestion process and the nutrients are absorbed by the intestinal mucosa.
Physiological function:
The histological characteristics of small intestine create favorable conditions for its absorption. The physiological function of small intestine is manifested in its movement, secretion, digestion and absorption, and is closely related to drug metabolism. For example, various forms of movement of small intestinal smooth muscle can complete the mechanical digestion of chyme, such as grinding, mixing and stirring. Small intestinal fluid secreted by small intestinal glands can complete the chemical digestion of chyme together with bile and pancreatic juice in the small intestine.