A bacterial toxin that is often used to smooth facial wrinkles by stopping the release of the neurotransmitter acetylcholine.
Signals that trigger an action potential to happen.
Neurotransmitters that inhibit or prevent action potentials.
The chemical form of a signal that is sent between neurons and muscle cells, gland cells or other neurons.
The cell at a synapse to which the neurotransmitter binds.
The cell at a synapse that stores a neurotransmitter for release.
The gap between a neuron and a gland cell, muscle cell and another neuron.