Properties of hyoid muscles in HYOID model.

The origin of the coordinate system used is the center of the C1-Skull joint. The x-axis points anteriorly, the y-axis points superiorly, and the z-axis points to the model’s right. Each of these muscles was added bilaterally.所用坐标系的原点为C1-颅骨关节（C1-Skull joint）的中心。X轴指向前方，Y轴指向上方，Z轴指向该模型的右侧。所有此类肌肉均为双侧添加。