痙攣
神經(jīng)病學(xué)

        痙攣是指肌肉或肌群的斷續(xù)的或持續(xù)的不隨意收縮,系因腦或脊髓的運(yùn)動(dòng)神經(jīng)元或神經(jīng)肌肉的異常興奮所致。某些痙攣可伴肌痛、肌強(qiáng)直或不自主運(yùn)動(dòng)及頭、頸、肢體、軀干扭轉(zhuǎn)畸形等。呈斷續(xù)的節(jié)律性肌收縮,間有肌松弛者稱陣攣性    （共 886 字）     [閱讀本文] >>