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Neuro: Auditory Sys

USCSOM: Neuroanatomy: 2-Auditory System

QuestionAnswer
What is the acoustic middle ear reflex? dampening of sound in response to very loud noises
What muscles are innervated in the acoustic middle ear reflex? tensor tympani and stapedius mm
What brain stem auditory nucleus mediates the acoustic middle ear reflex? superior olivary nucleus
What form the upper and lower walls of the cochlear duct? vestibular membrane and basilar membrane
What part of the cochlea is more responsive to high tones? base of cochlea; narrow and stiff
What part of the cochlea is more responsive to low tones? apex of the cochlea; wide and pliable
Where do the central processes of the first order auditory neurons synapse? dorsal and ventral cochlear nucleus
What is the course of the second order neurons from the cochlear nucleus? bilateral superior olivary nucleus; contralateral inferior colliculus
Created by: jlellerm