basilar membrane

Question 1

more of the basilar membrane is stimulated by…

Answer 1

LOW frequency sounds

Question 2

basilar membrane and the auditory nerve are..

Answer 2

tonotopically organized

inside = low freq
outside = high freq

Question 3

superior olivary complex

Answer 3

1st spot where both ears are represented (stereo effect)

• fibers decussate (cross over) to contralateral side
• nerve travels up and eventually into the auditory cortex

Question 4

all fibers terminate at…

Answer 4

the cochlea nucleus

Question 5

basilar membrane function

Answer 5

where the cochlea begins analysis of both frequency and intensity of sound signals

Question 6

inner vs outer hair cells

Answer 6

far fewer inner, but 90% are neurologically connected to brain via nerve fibers