The outer ear includes the ear lobe and external auditory canal, which funnels sound waves toward the eardrum (or tympanic membrane) allowing it to vibrate.
外耳包括耳垂和外耳道——用于把声波引入鼓膜，使之振动鼓膜。
2
Objective: to detect the significance of promontory groove and promontory canal on tympanic neurectomy.
目的：探讨岬沟及岬骨管在鼓室神经切除术中的意义。
3
Conclusion Maintenance of width of the aural canal and prevention of lateral healing of the transplantated tympanic membrane were crucial in the treatment of congenital aural atresia.