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Don F Gates
Acupuncture & Herbal Medicine
   

Grand Acupuncture Center
3931 Grand Ave, 2nd Floor
Oakland  CA 94610
510-428-9430

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What are the Meridians?
In traditional Chinese medical theory, the body is crisscrossed by a network of channels through which flow the Qi, Blood, and other material and immaterial substances that sustain us. These myriad pathways are known collectively as the jing luo, the channels and collaterals, or simply as the meridians.

The meridians connect the upper to the lower parts of the body, the internal to the external aspects, the organs to the vessels to the muscles, tendons, bones, skin, etc. Together, they integrate the various parts of the body into an organic whole and provide a network of communication, transportation, assistance, and regulation that keeps our systems running smoothly.

There are twelve primary meridians, corresponding to the twelve zang fu organs, and the Qi flows through them (and thus their respective organs) in the following order: Lung, Large Intestine, Stomach, Spleen, Heart, Small Intestine, Urinary Bladder, Kidney, Pericardium, San Jiao (or "Triple Warmer"), Gall Bladder, and Liver. In addition, there are the Eight Extra Meridians—the Du, Ren, Chong, Dai, Yin Qiao, Yang Qiao, Yin Wei, and Yang Wei—and multitudes of smaller collateral vessels. Of the Eight Extra Meridians, only the Du and the Ren have acupoints of their own, running up the midline of the back and front of the torso, respectively.

How Do We Use Them?
Clinically, the meridians provide us with external sites (acupoints) through which we can access and affect the Qi of the internal organ systems. For example, the frequently used acupoint LI-4 (He Gu) is used to treat all manner of digestive disturbances, as it lies along the meridian of the Large Intestine, one of the major organs in the digestive system. LI-4 directly affects the Large Intestine organ even though the point's location, in the meaty area between the thumb and forefinger, might otherwise seem unrelated. This is known as treating distally (needling the hand) to affect local disorders (e.g., abdominal pain).

The path a meridian follows as it runs through the body (as well as the location of the points along the meridian) is also used to help diagnose and treat illnesses. For example, LI-4 is known to treat disorders as diverse as the common cold, toothache, stuffy nose, nosebleed, delayed labor, deafness, mumps, excessive sweating or lack of sweat, neck pain, and red-teary-swollen eyes. These are known as channel symptoms and are tied together diagnostically by the fact that the Large Intestine meridian runs through each of the areas affected.

Disorders of the meridians themselves can also be used diagnostically, as pain along the course of a channel will sometimes indicate dysfunction of its related organ. Again reinforcing the clinical usefulness of knowing the meridian system, we also find that localized pain can often be treated by needling points farther up or down the meridian. Meridian theory is truly one of TCM's strongest advantages over the compartmentalized view of the body we inherit from Western medical theory.