Place the events of sound transduction in order.
1)Exocytosis of neurotransmitters occurs
2)Mechanically-gated channels fully open allowing K+ to enter
3)Calcium voltage-gated channels open
4)stereocilia of hair cells bend
5)Higher frequency of action potentials in first-order neurons
6)Cations entering cause depolarization

Question

Quizplus · Accepted Answer

The correct sequence for sound transduction starts with the bending of the stereocilia of hair cells (4), which leads to the opening of mechanically-gated channels allowing K+ to enter (2). This influx of cations causes depolarization (6), which then triggers the opening of calcium voltage-gated channels (3). The influx of calcium ions prompts the exocytosis of neurotransmitters (1), which finally results in a higher frequency of action potentials in the first-order neurons (5).

Place the Events of Sound Transduction in Order