Source: Synapse illustration image: http://en.wikipedia.org/wiki/File:Synapse_Illustration_unlabeled.svg
The chemical form of a signal that is sent between neurons and muscle cells, gland cells or other neurons.
The gap between a neuron and a gland cell, muscle cell and another neuron.
The cell at a synapse that stores a neurotransmitter for release.
The cell at a synapse to which the neurotransmitter binds.
Signals that trigger an action potential to happen.
Neurotransmitters that inhibit or prevent action potentials.
A bacterial toxin that is often used to smooth facial wrinkles by stopping the release of the neurotransmitter acetylcholine.