Answers:
Above what decibel does the stapedius muscle contract in order to decrease motion of the ossicles?
A) 20dB
B) 40dB
C)60dB
D)80dB
E) 100dB
B) 40dB
C)60dB
D)80dB
E) 100dB
This is referred to as the acoustic reflex.
Within the cochlea, Reissner's membrane separates---from---, whereas the basilar membrane separates--- from ---.
Reissner's membrane separates the scala vestibuli from the scala media whereas the basilar membrane separates the scala media from the scala tympani.
MC Question:
Ampullopetal flow in the semicircular canals causes the posterior canal to ---, the horizontal canal to---and the superior canal to---their firing rate.
A) increase, increase, increase
B) decrease, decrease, decrease
C) decrease, increase, increase
D) increase, increase, decrease
E) decrease, increase, decrease
A) increase, increase, increase
B) decrease, decrease, decrease
C) decrease, increase, increase
D) increase, increase, decrease
E) decrease, increase, decrease
Free Response Question:
Arrange the following in order from the cochlea to the brain: auditory cortex, hair cells, medial geniculate bodies, afferent nerves, inferior colliculi, cochlear nuclei, lateral lemnisci, superior olive complexes
Quick Facts:
Ampullopetal Flow = toward ampulla
Ampullofugal Flow = away from ampulla
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