Auditory System Flashcards
Lecture 5 Module 2
Where does the outer ear end?
The eardrum
Where does the middle ear end?
The oval window
What do the hair cells in the cochlea synapse onto?
Spiral ganglion cells
What makes up the auditory nerve?
Bundles of spiral ganglion cells
What makes up the vestibulocochlear nerve?
The auditory nerve and the neurons from the vestibular system
Where do the spiral ganglion cells go?
Cochlear nuclei between the pons and medulla
Where do neurons go after the cochlear nuclei?
Travel bilaterally to the inferior colliculi then MGN and A1
Why can’t you be cortically deaf?
Auditory information projects bilaterally so hemispheres get info from both ears
Where is A1?
Superior temporal sulcus, buried in the lateral sulcus
What is interaural time?
The difference in time of sound arriving at each ear
What plane are we bad at detecting where sound comes from?
Vertical
