Inner Ear Structure and Sound Perception

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Questions and Answers

Which statement accurately describes the cochlea?

It is part of the membranous labyrinth. (correct)
It is responsible for detecting low-frequency sounds.
It contains the tympanic membrane.
It is located in the outer ear.

What happens to the frequency of sound as the wavelength decreases?

It becomes inaudible.
It remains unchanged.
It decreases.
It increases. (correct)

What is false regarding auditory intensity?

It increases with wave height.
It has a logarithmic relationship to wave height.
It is unaffected by frequency. (correct)
It is measured using decibels.

Which part of the hearing apparatus contains the organ of Corti?

<p>Cochlea. (A)</p> Signup and view all the answers

Which statement about the chambers of the cochlea is incorrect?

<p>One chamber is filled with air. (B)</p> Signup and view all the answers

Flashcards

What is the function of the inner ear?

The inner ear is responsible for our sense of hearing and balance.

What is the cochlea?

The cochlea is a spiral-shaped structure within the inner ear responsible for converting sound waves into electrical signals.

What is the organ of Corti?

The organ of Corti, located within the cochlea, is the sensory receptor for hearing. It contains hair cells that respond to vibrations and send signals to the brain.

How does wavelength affect pitch?

The higher the frequency of a sound wave, the higher the pitch. Shorter wavelengths correspond to higher pitches.

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What determines sound intensity?

The intensity of sound is measured in decibels (dB) and is determined by the height of the sound wave. Louder sounds have larger amplitudes.

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Study Notes

Inner Ear Structure

The inner ear, a crucial part of the hearing process, contains the cochlea, a complex structure within the labyrinth.
The labyrinth is comprised of a bony labyrinth surrounding a membranous labyrinth.
The membranous labyrinth contains the cochlear duct (also known as the corti), which houses the organ of Corti.
The cochlea possesses three chambers: scala vestibuli, scala media (cochlear duct), and scala tympani.

Sound Perception

Sound waves are characterized by their wavelength and wave height.
Shorter wavelengths correspond to higher-pitched sounds.
The height (amplitude) of the sound wave directly relates to its intensity (loudness), measured in decibels (a logarithmic scale).