Otoacoustic emissions(OAEs)are sounds that originate in the cochlea and propagate through the middle ear and into the external ear canal.
耳声发射是一种产生于耳蜗，经听骨链及鼓膜传导释放入外耳道的音频能量。
MethodsThe level of PGE2 in 12 middle ear cholesteatoma specimens(observed group) and 10 samples of normal external ear canal skin(control group) were examined by RIA method.
方法采用放射免疫法检测12份胆脂瘤上皮组织匀浆液（观察组）及10份正常外耳道皮肤组织匀浆液（对照组）中PGE2水平。
The ear canal also named middle ear splays out at the external position.
耳道亦称中耳，内小外大呈喇叭状。
应用推荐