試題詳解

72. The transduction of sound waves to action potentials takes place

(A) as the basilar membrane becomes more permeable to sodium ions and depolarizes, initiating an action potential in a sensory neuron.

(B) when hair cells are bent against the tectorial membrane, causing them to depolarize and release neurotransmitter molecules that stimulate sensory neurons.

(C) within the middle ear as the vibrations are amplified by the malleus, incus, and stapes.

(D) within the tectorial membrane as it is stimulated by the hair cells.

(E) as the basilar membrane vibrates at different frequencies in response to the varying volume of sounds.