Indicate Whether Each of the Following Statements Is True of the Vestibular

question 22

Essay

Indicate whether each of the following statements is true of the vestibular system, the auditory system, both, or neither.
A. Depolarization of hair cells activates voltage-gated Ca²⁺ channels and glutamate release.
B. Ganglion neurons fire action potentials at a high rate in the absence of sensory stimuli.
C. Force exerted on stereocilia opens mechanotransduction channels in hair bundles.
D. Hair cells are tuned to different frequencies according to their location.
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Definitions:

Break-even Point

The point at which total expenses match total income, leading to neither a loss nor a profit.

Unit Variable Cost

The cost that varies with each unit of product produced, encompassing materials and labor but not fixed costs.

Sales Required

The minimum sales needed to achieve a specific financial goal or to cover costs.

Variable Cost

Costs that vary directly with the level of production or output.