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ST-9 This point is a bilateral point that is found on both sides of the neck and is located about 1.5 inches to the outside of the edge of the Adam’s apple of the throat. The fact that the point lays directly over the carotid artery allows strikes to have an immediate reaction to the flow of blood to the brain and head in general. It has a cryptic name in Chinese, Ren Ying,9 which means “Man’s Prognosis” and provides no clues to its location or use from a martial standpoint. Its proximity to the carotid artery allows this point to be one of the weakest points on the human body and regardless of the size and muscular strength of an opponent it is extremely sensitive. The superior thyroid artery, the anterior jugular vein, the internal jugular vein, the carotid artery, the cutaneous cervical nerve, the cervical branch of the facial nerve, the sympathetic trunk, and the ascending branch of the hypoglossal and vagus nerves are all present. Just the structurally aspects of all these sensitive and vital nerves, arteries and veins should place it high on the list of potential targets. I personally consider it as one of the most important Vital Points because of this alone. Additionally, ST-9 is an intersection point for the Stomach Meridian, Gall Bladder Meridian and the Yin Heel Vessel. Strikes to this point can kill due to the overall structural weakness of the area. Strikes should be aimed toward the center of the spine on a 90-degree angle. A variety of empty hand weapons can be employed in striking this point. Forearms, edge of hand strikes, punches, kicks, and elbow strikes are all effective. The same defensive tactics outlined under the SI-16 should be employed against attacks to this extremely vital point. CV-22 This is one of the two most important acupuncture points to the martial arts that is concerned with the hostile actions of life-or-death combatives. It sets in the horseshoe notch located at the extreme upper part of the chest structure and at the centerline of the front of the neck. Resting under it is the trachea, or commonly known as the “windpipe,” and a hard and vicious strike to this point can cause the surrounding tissue to swell, which can shut off the body’s ability to pull oxygen into the lungs. A hard strike to this point can be deadly. Attacking this point should only be done in the most extreme life-or-death situations. Energetically, the Conception Vessel and the Yin Linking Vessel intersect at this point. The implications of that, from a Traditional Chinese Medicine perspective, is included in this book. Additionally, the structure of the suprasternal notch is an excellent “touch point” for situations when sight is reduced and you find yourself at extremely close range with your opponent. This allows for utilization of this point in a self-defense situation that is not as extreme as full force strikes, as only a finger or two are inserted and rolled to the backside of the notch causing pain for the opponent.
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Rand Cardwell (36 Deadly Bubishi Points: The Science and Technique of Pressure Point Fighting - Defend Yourself Against Pressure Point Attacks!)