What are meridians? How many people are resting! What functions does it represent?

Meridian is a channel that runs the whole body's qi and blood, connects the joints of viscera and limbs, and communicates inside and outside, and exists in human body. Traditional Chinese medicine refers to the trunk and branches of human qi and blood circulation channels, such as the twelve meridians, the twelve meridians, Eight Strange Meridians, Fifteen Collaterals, the twelve meridians and twelve skin parts. Among them, the twelve meridians is the main vein, and the fifteen collaterals are the main veins. They intersect vertically and horizontally and spread all over the body, connecting the inside and outside of the human body, viscera and limbs into one. The channel through which the human body runs qi and blood. It includes two parts: meridians and collaterals, in which the longitudinal trunk is called meridians, and the branches of the network divided by meridians are called collaterals. Meridian, as the channel of qi and blood circulation, is dominated by the twelve meridians, and the twelve meridians's "living in the house and winding outside the limbs" connects the inside and outside of the human body into an organic whole. The twelve meridians is an important branch of the twelve meridians's chest, abdomen and head, which communicates with viscera and strengthens the connection between exterior and interior meridians. Fifteen collaterals are important branches of the twelve meridians in front, back and side of limbs and trunk, which play the role of communicating exterior and interior and nourishing qi and blood. Eight strange meridians are meridians with special functions, which play a role in guiding, connecting and regulating the rise and fall of qi and blood for the rest meridians. In addition, besides meridians, muscles are also dominated by meridians and divided into twelve meridians; The skin is also divided into twelve skin parts according to the distribution of meridians.