摘要
采用４导肌电图机对７例声带麻痹患者１２侧各喉外肌肌电图与健侧甲杓肌（ＴＡＭ）肌电图作对比研究。结果表明：①发音时，各喉外肌均呈与ＴＡＭ基本同步的密集型放电，音量大放电强。发音条件一致时，诸喉外肌的放电不因发不同的元音而不同。②吞咽及咳嗽时诸喉外肌均呈密集型强放电，但较ＴＡＭ提前约１００及５００ｍｓ；屏气时诸喉外肌均呈与ＴＡＭ基本同步的密集型放电。③深吸气时诸喉外肌也放电，但放电强度低于发音及各种喉括约活动时电位。
Seven cases of human extrinsic laryngeal muscles were studied to determine the electrical activities during phonation,coughing,swallowing,fixation of thorax and respiration。The activities of these muscles all fired during phonation which were synchronous with discharge of the thyroarytenoid muscle(TAM)and increased with increasing volume of voice.They also fired during cough reflex and sphincteric action of larynx,and were basically synchronous with the TAM。They were weak during normal respiration.Although stronger electrical activities were recorded during inspiration in dyspnea,they were weaker than discharge during phonation,cough reflex and sphincteric action of larynx。
出处
《中华耳鼻咽喉科杂志》
CSCD
1995年第2期108-110,共3页
Chinese Journal of Otorhinolaryngology
