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帕金森氏病究竟是一种什么疾病呢? 在人体的大脑里有一个称为椎体外系的系统,它由纹状体、苍白球和黑质等结构组成,它们通过多种复杂的神经化学变化来保证人体必要的肌张力。如正常人的黑体能产生一种叫多巴胺的物质使肌肉组织维持正常的张力。当椎体外系发生病变时,就可能出现肌张力的增高或降低。帕金森氏病(又称为震颤麻痹)就是黑体和纹状体通路发生了病变,黑体不能产生多巴胺,纹状体中的多巴胺含量显著减少,使肌肉组织不能维持正常的张力,而出现震颤麻痹的症状。本病好发年龄为50岁以上,男性较女性多见。主要表现为震颤,身体的肌肉每秒4～8次有节律的收缩和舒张,最先出现
Parkinson’s disease is what kind of disease what? In the human brain there is a system called the extrapyramidal system, which consists of striatum, globus pallidus and substantia nigra and other structures, which through a variety of complex nerves Chemical changes to ensure that the human body necessary muscle tone. Such as normal black body can produce a substance called dopamine to maintain normal muscle tissue tension. When lesions occur in the extra-vertebral system, muscle tension may increase or decrease. Parkinson’s disease (also known as Parkinsonism) is a pathological change in the pathways of the black and striatum. The black body does not produce dopamine. The dopamine levels in the striatum are significantly reduced, leaving the muscle tissue unable to maintain normal tension and paralysis Symptoms. The disease is more than 50 years of age, men more common than women. Mainly tremor, the body’s muscles 4 to 8 times a second rhythmic contraction and relaxation, the first to appear