目的：探讨全喉切除发音重建中切断环咽肌与一侧咽缩肌对发音的影响。
Objective: To study the influence of amputating cricopharyngeal muscle and unilateral pharyngeal constrictor after total laryngectomy on vocal restoration.
吻合口紧张时，可切除喉前带状肌，部分甲状舌骨膜及咽缩肌。
When tallies tight-lipped, before may excise the throat, the belt-shaped muscle, the partial armor shape tongue periosteum and swallows the constrictor.
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