The ear drum is also known as which structure?

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Multiple Choice

The ear drum is also known as which structure?

Explanation:
The ear drum is the tympanic membrane. It’s a thin, cone-shaped membrane at the boundary between the external ear canal and the middle ear. When sound waves hit it, the tympanic membrane vibrates and these vibrations are transmitted to the small bones (the hammer, anvil, and stirrup) in the middle ear to carry the sound onward. The other structures listed aren’t the eardrum: the ear canal is just the passage leading to it, the cochlea is the inner-ear structure that converts vibrations into neural signals, and the Eustachian tube helps equalize middle-ear pressure.

The ear drum is the tympanic membrane. It’s a thin, cone-shaped membrane at the boundary between the external ear canal and the middle ear. When sound waves hit it, the tympanic membrane vibrates and these vibrations are transmitted to the small bones (the hammer, anvil, and stirrup) in the middle ear to carry the sound onward. The other structures listed aren’t the eardrum: the ear canal is just the passage leading to it, the cochlea is the inner-ear structure that converts vibrations into neural signals, and the Eustachian tube helps equalize middle-ear pressure.

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