【摘要】 通过对8只犬的活体实验,证实在环甲关节运动的动力装置牵拉下,环状软骨借助于环甲关节可以发生位移,而甲状软骨则相对固定;在单侧环甲肌作用下,环状软骨可以发生偏转而引起声门偏斜,但不会引起喉扭转;只有在单侧咽下缩肌的作用下才会出现喉扭转现象。更多还原

【Abstract】 In our experimental study with 8 dogs, it is found that when the cricothyroid muscles and the thyroarytenoid muscles are contracting, the cricoid cartilage is displaced by means of cricothyroid joints, but the thyroid cartilage is relatively fixed, that the contraction of unilateral ’ cricothyroid muscle results in the cricoid cartilage deflection and glottic deviation,but it doesn’t turn-round the larynx which can only be observed during the contraction of unilateral infracbnstrictor.更多还原