Your young child has a middle ear infection: otitis media. There is a build-up of fluid, bacteria, and white blood cells, or pus, inside of the middle ear chamber. Why has this affected the child's hearing?

A) The cochlear receptor cells cannot move.
B) The bacterial infection has destroyed the otoliths.
C) The round window cannot vibrate to dissipate pressure.
D) The auditory ossicles cannot vibrate freely.
E) The tympanum is destroyed.


D) The auditory ossicles cannot vibrate freely.

Anatomy & Physiology

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