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Neuro: Auditory Sys
USCSOM: Neuroanatomy: 2-Auditory System
Question | Answer |
---|---|
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 |