Select the first step for synaptic signaling when the action potential arrives at the axon terminal of a presynaptic neuron.
A)A neurotransmitter is released by exocytosis.
B)Calcium flows into the synaptic knob.
C)The neurotransmitter combines with a protein receptor on the subsynaptic membrane.
D)The permeability is altered in a postsynaptic neuron.
E)The axon terminal depolarizes.

Question

Quizplus · Accepted Answer

When an action potential arrives at the axon terminal, it causes depolarization of the terminal, which is the first step in synaptic signaling.

Select the First Step for Synaptic Signaling When the Action