Happak W, Zrunek M, Pechmann U, Streinzer W
3rd Department of Anatomy, University of Vienna, Austria.
Acta Otolaryngol. 1989 Mar-Apr;107(3-4):283-8. doi: 10.3109/00016488909127510.
Four laryngeal muscles of human male, human female and sheep female cadavers were evaluated by histological, histochemical and quantitative techniques. The muscle fibre sizes showed significant differences between human male, female and sheep. Fibre diameters of male human laryngeal muscles were 2 to 4 microns larger than in female human and 11 to 13 microns larger than in sheep muscles. In the group of human laryngeal muscles, the posterior cricoarytenoid muscle contained the highest percentage (65%) of type I fibres. In sheep, the homologous muscle consists only of 45% type I fibres. On the other hand, in sheep the cricothyroid muscle showed significantly more type I fibres (58%) than the human counterpart (43%). In both species the vocal muscles had a rather low content of type I fibres (26 to 37%).
通过组织学、组织化学和定量技术对人类男性、人类女性和绵羊雌性尸体的四块喉肌进行了评估。肌纤维大小在人类男性、女性和绵羊之间存在显著差异。人类男性喉肌的纤维直径比女性大2至4微米，比绵羊肌肉大11至13微米。在人类喉肌群中，环杓后肌含I型纤维的比例最高（65%）。在绵羊中，同源肌肉仅含45%的I型纤维。另一方面，在绵羊中，环甲肌显示出比人类对应肌肉（43%）显著更多的I型纤维（58%）。在这两个物种中，声带肌的I型纤维含量都相当低（26%至37%）。
