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Neurotransmitter Release

Meaning

Neurotransmitter release is the fundamental biological process by which chemical messengers, known as neurotransmitters, are secreted from the axon terminal of a presynaptic neuron into the synaptic cleft. This exocytotic event is the essential step in chemical synaptic transmission, allowing nerve impulses to be transmitted to a postsynaptic neuron, muscle cell, or gland. In the context of hormonal health, the proper function of this release mechanism is critical for regulating mood, sleep, appetite, and the secretion of various pituitary hormones.