I. Middle Ear Physiology --;Ventilation and Pressure Regulation --;II. Middle Ear Pathophysiology after Ear Surgery --;III. Chice of Middle Ear Surgery --;IV. Cholesteatoma Viewed from Middle Ear Ventilation.
SUMMARY OR ABSTRACT
Text of Note
For the middle ear to maintain its most important function, sound con- duction, its pressure always needs to be kept around atmospheric level.