BackCochlear
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1/4Terms in this set (4)
The depolarization of what cell causes action potential in cochlear nerve?
Cochlear hair cell
What parts does the ear consist of?
External ear (tympanic membrane) middle ear + auditory ossicles (oval window) internal ear (coclear duct)
How does sound propagate through the ear?
-Sound waves vibrate tympanic membrane
-Vibrations > auditory ossicles
-Auditory ossicles push on oval window
-Sound waves move fluid > vibrations reach cochlear duct
How does sound go from cochlear duct to brain?
-Cochlear hair cells in cochlear duct move and bend stereocillia
-Graded depolarization > neurotransmitters released
-Associated cochlear nerve fibers > action potential
-Impusle > cochlear nerve > medulla > thalamus > primary auditory cortex (temporal lobe)