Bérzin F, Fortinguerra C R
Departamento de Morfologia, FOP/UNICAMP, Piracicaba, SP, Brazil.
Ann Anat. 1993 Apr;175(2):195-7. doi: 10.1016/s0940-9602(11)80182-2.
Anterior, superior and posterior auricular muscles were studied electromyographically by means of wire electrodes. During ear movement the three muscles acted as a group and the movement was always directed upwards and backwards. The highest electrical activities were observed during natural smiling and yawning. Mouth opening without the drawing backwards of the comissura labiorum and the displacement of galea aponeurotica also produced electrical activity by the auricular muscles, with however, less intensity and in only 50% of the cases studied.
采用线电极对耳前肌、耳上肌和耳后肌进行了肌电图研究。在耳部运动过程中，这三块肌肉协同作用，运动方向总是向上和向后。在自然微笑和打哈欠时观察到最高的电活动。在不伴有唇角后拉和帽状腱膜移位的张口动作中，耳肌也会产生电活动，然而强度较小，且仅在50%的研究病例中出现。
