As a result of the tympanic reflex,
A. the malleus is pulled toward the eardrum.
B. the bridge of auditory ossicles becomes less rigid.
C. vibrations are transmitted more effectively to the inner ear.
D. vibrations are transmitted less effectively to the inner ear.
Answer: D
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The precentral gyrus ________.
A. is the cortical area to which taste sensations come B. is a center for audition C. is important for somatosensation D. is a major motor area of the brain
The superior olivary nucleus
A. receives impulses from the vestibular nerve. B. sends efferent impulses that inhibit all hair cells not vibrating maximally. C. generates the endocochlear potential. D. stimulates additional hair cells. E. helps localize high-pitched tones near the apex of the basilar membrane.