2. The basic pathogenesis ① nervous mechanism injury of nervous system cause sease disturbance of the function injury: epidemic meningitis, cephalitis, poliomyelitis functional hypertension, disturbance: hepatic encephalopathy2. The basic pathogenesis ① nervous mechanism injury of nervous system cause disease disturbance of the function injury: epidemic meningitis, cephalitis, poliomyelitis functional hypertension, disturbance: hepatic encephalopathy