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Questions and Answers
What does Frequency Theory suggest about how we perceive pitch?
Place Theory explains pitch perception based on the frequency of sound waves.
False
What type of hearing loss is characterized by damage to the inner ear or auditory nerve?
Sensorineural Deafness
_____ Theory states that sound waves are coded by the number of neural impulses sent to the brain.
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Match the following types of hearing loss with their descriptions:
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Study Notes
Ear Organization
- The ear is divided into three parts: the outer ear, the middle ear, and the inner ear.
- The outer ear collects sound waves and funnels them to the eardrum.
- The middle ear amplifies sound waves and transmits them to the inner ear.
- The inner ear contains the cochlea, which converts sound waves into electrical signals that are sent to the brain.
How Do We Determine Pitch?
- Frequency Theory: The number of waves per second (Hz) corresponds to the frequency of sound. The rate at which the eardrum vibrates matches the frequency of the sound wave.
- Place Theory: Different frequencies of sound cause vibrations at different locations along the basilar membrane in the cochlea.
- Volley Theory: Nerve cells fire in volleys (rapid bursts) to code for higher frequencies of sound.
Conduction Hearing Loss
- Occurs when sound waves cannot be conducted through the outer or middle ear to the inner ear.
- This can be caused by earwax buildup, damage to the eardrum, or problems with the bones in the middle ear.
Sensorineural Deafness
- Occurs when there is damage to the hair cells in the inner ear or the auditory nerve.
- Can be caused by exposure to loud noises, aging, certain medications, and genetic disorders.
- The cochlea plays a vital role in converting sound vibrations to electrical signals.
- This type of deafness is often permanent.
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Description
Explore the fascinating structure and function of the ear in this quiz. Learn how sound waves travel through the outer, middle, and inner ear, and discover the theories behind pitch perception. Understand conduction hearing loss and its implications for sound transmission.
