人体保持一定的姿势从事随意运动、与大脑皮质、大脑皮质的基底核、小脑、前庭迷路系统、深层感觉均有密切关系;这些上行、下行传导束最终均与脊髓前角细胞联系,对脊髓前角细胞起调节、控制作用,来恰当地完成随意运动,保持平衡。平衡障碍产生广泛的协调不良叫作共济失调。临床常根据病变部位不同将共济失调分类为小脑型、前庭迷路型、深层感觉型与大脑型四种。 The human body to maintain a certain position engaged in voluntary exercise, and the cerebral cortex, the basal ganglia of the cerebral cortex, cerebellum, vestibular labyrinthine system, deep feeling are closely related; these upstream and downstream conduction beam eventually connected with the spinal cord anterior horn cells, Corneal cells play a role in regulating and controlling, so as to properly perform voluntary exercise and balance. Balancing disorders produce a wide range of poor coordination called ataxia. Clinical often according to different parts of the lesion will be divided into ataxia cerebellar, vestibular labyrinthine, deep sensory and cerebral four.