In a neuron,what happens when an action potential reaches the axon terminals of the neuron?
A)Since neurons touch one another,the action potential simply travels to an adjoining neuron.
B)The action potential stimulates the release of chemical substances.
C)The impulse changes direction,heading back to the cell body.
D)An electrical spark forms,which may jump to other neurons.

Question

Quizplus · Accepted Answer

When an action potential reaches the axon terminals of a neuron, it triggers the release of neurotransmitter molecules from specialized structures called vesicles. These neurotransmitters diffuse across the synaptic cleft and bind to receptors on the next neuron or effector cell, thereby transmitting the message.

In a Neuron,what Happens When an Action Potential Reaches the Axon