WHAT IS MERIDIAN SYSTEM
The meridians (jing) and submeridianss (luo) are the pathways in which qi (vital energy) and blood circulate. They form a specific network which communicates with the internal organs and limbs and connects the upper to the lower and the exterior portions of the body.
The meridian network is typically divided into two categories, the meridian channels and the submeridian vessels (sometimes called "collaterals"). The meridian network contain the 12 tendinomuscular meridians, the 12 divergent meridians, the 12 principal meridians, the eight extraordinary vessels. The collaterals contain 15 major arteries that connect the 12 principal meridians in various ways, in addition to the interaction with their associated internal organs and other related internal structures.