9. Which bump deals with auditory reflexes (upper or lower)?
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10. The apex (i.e. region farthest away from the oval window) of the basilar membrane resonates primarily in response to tones. 11. Mechanically-gated channels in the stereocilia that are permeable to ions are responsible for depolarizing inner hair cells. 12. An increase in the intensity of sound pressure is encoded by increases in the and of spiral ganglion neurons. 13. The systematic mapping of sound frequency onto different nerve fibers in the auditory pathway is referred to as a(n) arrangement. 14. The 3rd order neurons in the auditory pathway are located in the at the junction of the pons and medulla. 15. The subdivision of the thalamus that serves as the gatekeeper for auditory signals destined for the auditory cortex is called the . 16. A sound source is located 30 degrees to the right of the midline position (i.e. straight in front of the head). If the average firing rate of the lateral superior olive (LSO) neurons on the right side of the brain stem is 100 impulses/s in response to this sound stimulus, what is the firing rate of the LSO neurons on the left side of the brain stem? 17. The caudal regions of the primary auditory cortex (AI) respond most vigorously to tones.
Madhur L.
(Some questions have more than one correct answer. Select the best answer or answers from the choices given.) A professor unexpectedly blew a loud horn in his anatomy and physiology class. The students looked up, startled. The reflexive movements of their eyes were mediated by the (a) cerebral cortex, (b) inferior olives, (c) raphe nuclei, (d) superior colliculi, (e) nucleus gracilis.
13. This is a multiple-choice question. 14. 15. 16. 17.
Adi S.
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