In fact, 80 percent of blunt carotid artery injuries result in death or severe neurological impairment. However, an abundance of medical literature describes serious injuries that resulted from blunt carotid artery trauma, including fainting, stroke and death. Some martial artists protest that stomach-9 is not really dangerous because there are no documented cases in which people were seriously injured from accidental or intentional blows to the carotid sinus or carotid artery. Medical science has found that the plaques develop during childhood, so even young people are at some risk, albeit small, if a blow breaks off a piece of plaque which then travels to the brain. Additionally, the carotid arteries are prone to a buildup of atherosclerotic plaques in the carotid sinus.īlows to the carotid sinus via stomach- 9 can damage or cause small tears on the inside of the carotid artery, which can cause blood clots leading to occlusion and subsequent stroke or death. However, medical science has found that excessive stimulation of this organ causes a drastic decrease in blood pressure that can lead to loss of consciousness or even cardiac arrest. Physicians routinely exploit the heart- rate-lowering effect of carotid sinus stimulation to stop certain abnormal heart rhythms. When the pressure is too high, it signals the vasomotor center in the brain to decrease the blood pressure by dilating the peripheral blood vessels and decreasing the heart rate. This part of the artery contains a special sensory organ, the carotid sinus, which monitors the pressure of the blood that flows to the brain. Located directly over the location at which the carotid artery bifurcates into the internal and external carotid arteries, the stomach-9 point is reputed to be able to cause knockout, death and delayed death.
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