ANATOMY

Detailed explanation-1: -Neurotransmitter – A chemical released from a neuron following an action potential. The neurotransmitter travels across the synapse to excite or inhibit the target neuron. Different types of neurons use different neurotransmitters and therefore have different effects on their targets.

Detailed explanation-2: -Apart from acetylcholine, other major neurotransmitters that the axon terminal provides a way across the synapse are dopamine, norepinephrine, epinephrine, serotonin, oxytocin, somatostatin, etc. These chemicals are important chemical regulators of many biological activities.

Detailed explanation-3: -Neurotransmitters are located in a part of the neuron called the axon terminal. They’re stored within thin-walled sacs called synaptic vesicles. Each vesicle can contain thousands of neurotransmitter molecules.

Detailed explanation-4: -Neurotransmitters are often referred to as the body’s chemical messengers. They are the molecules used by the nervous system to transmit messages between neurons, or from neurons to muscles. Communication between two neurons happens in the synaptic cleft (the small gap between the synapses of neurons).

Detailed explanation-5: -The enzymes needed for transmitter synthesis are synthesized in the neuronal cell body and transported to the nerve terminal cytoplasm at 0.5–5 millimeters a day by a mechanism called slow axonal transport.