Control theory, the gate (Gate control theory), a theory invented by Melzack&wall.One of the most recognized, because it can describe the pain, both physical and mental pain occurs, the mechanism described by highlighting the nerve signals are imported from various parts of the body will be tuned in the spinal cord before sending up get pain in the brain level. This theory believes that pain and pain perception depends on the collaboration of the substantia gelatinosa in the cell is system 3: SG special cells located in the cell which is a horn that nervous fibres Dosal, long in a straight, go directly to the brain by Dosal could explain the mechanism that caused pain.
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