Neurotransmitter
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A neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a synapse. The cell receiving the signal, or target cell, may be another neuron, but could also be a gland
Synaptic vesicles containing neurotransmitters
Acetylcholine
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Acetylcholine is an organic compound that functions in the brain and body of many types of animals as a neurotransmitter. Its name is derived from its chemical structure: it is an ester of acetic acid
Neurotransmitter
…exact number of unique neurotransmitters in humans is unknown, but more than 100 have been identified. Common neurotransmitters include glutamate, GABA, acetylcholine, glycine, dopamine and norepinephrine. Neurotransmitters are generally synthesized in neurons and are made up of, or derived from, precursor molecules…
Components and connections of the parasympathetic nervous system.
Micrograph of the nucleus basalis (of Meynert), which produces acetylcholine in the CNS. LFB-HE stain.