Question

Which substances are authenticated as neurotransmitters?

Answer 1

Neurotransmitters are endogenous chemicals that enable neurotransmission. It is a type of chemical messenger which transmits signals across a chemical synapse, such as a neuromuscular junction, from one neuron (nerve cell) to another "target" neuron, muscle cell, or gland cell.[1]

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Answer 2

Substances that act as neurótrànsmitters can be roughly categórized into three major groups: amino acids