Hearing Flashcards
A unit expressing the frequency of sound waves.
Hertz
A limit expressing the loudness of a sound
Decibels
The inner ear; the bony tube that contains the basilar membrane and organ of the corti
Cochlea
The receptor for hearing that lies on the basilar membrane in the cochlea
Organ of corti
A membrane that lies foiled within the cochlea
Basilar membrane
The axon bundle that transmit neural impulses from the organ corti to the brain
Auditory nerve
The theory that the pitch of a sound is determined by the section of the basilar membrane that vibrates in response to the sound
Place theory
The theory that the pitch of a sound is reflected in the frequency of the neural impulses that are generated in response to the sound
Frequency theory
Helped develop the place theory of pitch discrimination as well as the trichromatic theory of color vision
Hermann von helmholtz
Found that receptors at different sites along the membrane fire in response to tones of differing frequency
Georg von bekesy
The two major types of deafness
- Conductive deafness - damage of the middle ear, either the ear drum or to the bones the amplify sound waves
- Sensorineural deafness - damage to the structure of inner ear, most often the loss of hair cells or auditory nerve
Damage to the middle ear like ear drums or bones that amplify the sound wave
Conductive deafness
Damage to the inner ear like loss of hair cells or auditory nerve
Sensorineural deafness
Dance in response to the vibrations of the basilar membrane
Hair cells
Shaped and constructed to capture sound waves, vibrate sympathy with them and transmit them to the brain
Ear
