- A neuron generates an electrical impulse, causing the cell to release its neurotransmitters.
- Excitatory neurotransmitters transfer an impulse to the next cell.
- Nerve impulses are transmitted at synapses by the release of chemicals called neurotransmitters.
- Cnidarians contain chemical synapses and release neurotransmitters, including biogenic amines and peptides.
- Postsynaptic proteins receive the neurotransmitters released by presynaptic proteins.