1. 8th cranial nerve afferents of the auditory system:
A. show spontaneous activity
B. have a best or characteristic frequency
C. all of the above
D. none of the above

2. As the pitch of a sound gets higher, displacements of the basilar membrane occur
A. more towards the apex
B. more towards the base
C. more towards the middle
D. equally throughout the length of the membrane

3. The Pacinian corpuscle is a receptor for
A. light touch
B. pressure
C. pain
D. tickle

4. Auditory hair cells located near the apex of the basilar membrane are most sensitive to:
A. the highest sound frequencies
B. the lowest sound frequencies
C. the middle sound frequencies
D. all of the above

5. When a person is in a car that is accelerating forward, the "hairs" of the
A. saccule move backward
B. utricle move backward
C. saccule move forward
D. utricle move forward

6. Which of the following organs is part of the vestibular appartus?
A. utricle
B. saccule
C. semicircular canals
D. All of these choices are true

7. An otolith membrane is found in the
A. utricle
B. saccule
C. semicircular canals
D. utricle and saccule
E. saccule and semicircular canals

8. A sound at the threshold of hearing has an intensity of
A. zero decibels
B. 1 decibel
C. 10 decibels
D. 100 decibels

9. Two point discrimination depends upon;
A. lateral inhibition
B. sensory adaptation
C. all of the above
D. none of the above

10. Action potentials in sensory neurons are directly produced by
A. chemical neurotransmitters
B. generator potentials
C. the sensory stimulus
D. injury currents