The human ear
Chapter 1
The outer and middle ear
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Chapter 2
The inner ear and the brain
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Chapter 3
The balance system
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Chapter 4
Hearing health and sound limits
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YOUR GOAL
Master of The human ear
Ch 1 · The outer and middle ear
Fun Fact
Ear bone size: The three bones of the middle ear can all fit together on the surface of a single dime.
Glossary
tympanic membrane (noun)
A thin, semitransparent membrane separating the external ear canal from the tympanic cavity that vibrates in response to sound waves. Hermann von Helmholtz analyzed its mechanical transformer action in his 1869 treatise.
A thin, semitransparent membrane separating the external ear canal from the tympanic cavity that vibrates in response to sound waves. Hermann von Helmholtz analyzed its mechanical transformer action in his 1869 treatise.



