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Anatomy of the Inner and Outer Ear

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Questions and Answers

What are the two parts of the inner ear?

Cochlea and vestibular apparatus

What are the two reasons why sound on one side of the head sounds louder for the near ear than the far ear?

Spreading loss and head diffraction effect

What is the function of the outer ear structures like pinna, concha, and external ear canal?

Protection, amplification, and sound localization

What is HRTF used for in the context of sound localization?

Head Related Transfer Function is used to create a 3D sound field by inverse Fourier transformation. Signup and view all the answers

What is the role of pinna in sound localization?

Directional receiver for specific frequencies Signup and view all the answers

How can a Click test help in vertical sound localization?

A Click test can determine if the sound is above your head by observing a significant notch at around 8kHz. Signup and view all the answers

What is the range of frequencies that the ear canal amplifies?

1k to 7k Hz Signup and view all the answers

What is the function of the pina in sound localization?

The pina helps in distinguishing whether the sound is coming from above or below. Signup and view all the answers

Where does the standing wave phenomenon occur in the outer ear?

Concha and external ear canal Signup and view all the answers

What role does the middle ear play in transferring sound energy to the oval window?

The middle ear mechanically transfers sound energy to the oval window for further processing. Signup and view all the answers