EVERYDAY SCIENCE

Detailed explanation-1: -When the electrical impulse from the action potential reaches the end of the axon, it signals the terminal buttons to release neurotransmitters into the synapse. A neurotransmitter is a chemical that relays signals across the synapses between neurons.

Detailed explanation-2: -Neurotransmitter – A chemical released from a neuron following an action potential. The neurotransmitter travels across the synapse to excite or inhibit the target neuron.

Detailed explanation-3: -Neurotransmitters are the chemicals that transmit the nerve impulse across the synapse. They are stored in synaptic vesicles of axon terminal and are released into the synaptic cleft. Acetylcholine is the neurotransmitter secreted by both pre-and post-ganglionic parasympathetic cholinergic neurons.

Detailed explanation-4: -When the nerve impulse reaches the dendrites at the end of the axon, chemical messengers called neurotransmitters are released. These chemicals diffuse across the synapse (the gap between the two neurons). The chemicals bind with receptor molecules on the membrane of the second neuron.

Detailed explanation-5: -Neurotransmitters are chemical molecules that “ferry” nerve impulses across the synapse from one neuron to the next. Each type of neurotransmitter has a molecular form that lets it bind to the right site on the second neuron to produce its particular effect. The neurotransmitter thus acts somewhat like a key.