Question

question 4 2 pts neurotransmitters are released into the axon after dendrites are excited. are released into the myelin sheath after axon branches are stimulated. are released into the synapse after a buildup of negative ions inside the neuron. are released into the synapse after the action potential reaches the axon terminal branches.

Explanation:

When an action potential travels down the axon and reaches the axon - terminal branches, neurotransmitters are released into the synapse. Dendrites receive signals and if the sum of these signals is strong enough, an action potential is generated. Myelin sheath is for insulation of the axon, not a place for neurotransmitter release. A buildup of negative ions inside the neuron is not the trigger for neurotransmitter release.

Answer:

D. are released into the synapse after the action potential reaches the axon terminal branches.