甲杓肌 (TA)对喉的生物力学和发声有很大影响 ,是组成声皱襞的主要成分 ,尤其当喉肌收缩时 ,比其它喉内肌对气道阻力影响更大。喉肌过度内收同 TA肌强烈收缩有关。研究显示 ASD(内收肌痉挛性发音困难 )病人的症状与 TA肌过度活动相关。TA肌还起着决定声皱襞弹性度的作用 ,这同 The thyroid muscle (TA) has a great influence on the biomechanics and vocalization of the larynx, and is the main component of the vocal fold. Especially when the laryngeal muscle contracts, it has a greater influence on airway resistance than other laryngeal muscles. Laryngeal muscle over-retracted with the strong contraction of the TA muscle. Studies have shown that symptoms of ASD (adductor spastic dysphonia) are associated with excessive TA muscle activity. TA muscle also plays a role in determining the sound of folds 襞 elasticity, the same