Outer hair cells in the cochlea; what do they do??

Seth BH sethbh at aol.com
Fri Aug 16 20:12:45 EST 1996


Outer hair cells are largely implicated in the sharpening of tuning
response -- as they are bidirectionally connected to auditory brainstem
nuclei and have been demonstrated to have controllable shapes, they may
change local stiffness of the membrane, hence alter travelling wave
characteristics (and activation of inner hair cell afferents).  They have
also been implicated in generation of otoacoustic emissions (sound
emission from the external auditory meatus following an impulsive sound or
in certain pathological conditions.  This is a very surface level
description -- a good general reference would be either Yost's or Moore's
textbook.
Seth Boatright-Horowitz
Dept. of Neuroscience
Brown University

"But in the mud and scum of things, there always, always something sings."
 Emerson



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