舌骨上肌与喉内肌的同步肌电生理实验研究  

Electromyographic study of suprahyoid muscles and intrinsic laryngeal muscles in dogs

作　　者：周霓[1,2] 徐志文[3] 温文胜[3] 

机构地区：[1]广西医科大学研究生学院,广西南宁530021 [2]广西柳州市工人医院耳鼻咽喉科,广西柳州545005 [3]广西医科大学第一附属医院耳鼻咽喉头颈外科,广西南宁530021

出　　处：《中国耳鼻咽喉头颈外科》2010年第7期372-375,共4页Chinese Archives of Otolaryngology-Head and Neck Surgery

基　　金：广西自然科学基金资助项目(桂科自0640122;桂科自0832149)

摘　　要：目的对犬的舌骨上肌(二腹肌前腹、后腹,茎突舌骨肌,下颌舌骨肌和颏舌骨肌)与喉内肌(环杓侧肌和环杓后肌)进行同步肌电图研究。方法检测13只犬同步肌电图。结果①呼吸时环杓侧肌在呼气相放电,余各肌在吸气相放电。深呼吸时诸肌放电强度增加。②吞咽时诸肌和环杓侧肌呈同步放电。环杓后肌肌电抑制,间歇期可见肌电位发放。③发音时二腹肌前腹、后腹和环杓侧肌呈同步性密集型放电,环杓后肌在发音过程中持续放电,动作电位出现时间较迟。茎突舌骨肌和颏舌骨肌无明显肌电活动。结论①发音及吞咽时下颌舌骨肌与环杓侧肌同步且相似,可作为重建声门内收功能的备选肌肉;②吸气时颏舌骨肌与环杓后肌同步且相似,可作为重建声带外展功能的备选肌肉。OBJECTIVE To study the synchronous electromyograhic features of suprahyoid muscles [anterior digastric muscle（AD）, posterior digastric muscle（PD）,stylohyoid muscle（STH）,mylohyoid muscle（MH）and geniohyoid muscle（GH）] and intrinsic laryngeal muscles [lateral cricoarytenoid muscle（LCA）and posterior cricoarytenoid muscle（PCA）]. METHODS Synchronous electromyograhic features of 13 dogs were observed under the circumstances of breath, swallowing and phonation. RESULTS ①AD, PD, STH, MH, GH and PCA discharged during inspiratory phase, while LCA discharged during expiratory phase. ②During swallow, suprahyoid muscles and LCA showed intensive synchronous discharge. The myoelectricity of PCA was suppressed while myopotential can be detected during intermission. ③During phonation, AD, PD, LCA and PCA showed an intensive synchronous discharge, while emergence time of PCA was later. GH and STH showed no myoelectricity activities. CONCLUSION①During phonation and swallowing, MH is synchronized with LCA. It can be chosen as the backup muscle for the reestablishment of glottic adduct function. ②During inspiratory phase, GH is synchronized with PCA. It can be chosen as the backup muscles for the reestablishment of vocal cord abduct function.

关 键 词：喉肌 肌电描记术 舌骨上肌群 环杓侧肌 环杓后肌 

分 类 号：R739.65[医药卫生—肿瘤]