Neuronal synapse

Neuronal synapse

When an action potential arrives at the synapse, the electrical signal of the action potential is transformed into a biochemical signal. This transformation is necessary in order to have the signal cross the small space between two neurons (20 nm).

1

The neuronal cell body communicates the signal for neurotransmitter release via an action potential.

2

Association with post-synaptic receptors is based on an electrochemical gradient.

3

In the presence of enough enzymes, extra-cellular metabolism is the fastest way to clear neurotransmitters from the synapse.