What event causes the release of neurotransmitters into the synaptic cleft?
A) the arrival of the action potential at the postsynaptic neuron
B) the arrival of the resting potential at the postsynaptic neuron
C) the arrival of the action potential at the terminal buttons
D) the arrival of the resting potential at the terminal buttons

Question

Quizplus · Accepted Answer

The arrival of the action potential at the terminal buttons causes the opening of voltage-gated calcium channels, allowing calcium ions to enter the terminal buttons. This influx of calcium ions triggers the release of neurotransmitters into the synaptic cleft.

What Event Causes the Release of Neurotransmitters into the Synaptic