In the normal hearing pathway, sound waves have to pass from air to liquid as sound is transmitted from the external ear to the inner ear. This occurs as a result of

a. the increase in pressure on the oval window relative to the pressure on the tympanic membrane.
b. the increase in force applied to the oval window which is accomplished by the lever action of the inner ear ossicles.
c. the difference in surface areas of the tympanic membrane and the membrane of the oval window .
d. two of these.
e. all of these.


E

Anatomy & Physiology

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