Impulse transmission across the synapse
Impulse arrives at the pre-synaptic knob;
This causes the synaptic vesicles to move randomly within the knob;
Some vesicles make contact with the pre-synaptic membrane;
The vesicles rapture and discharge the neurotransmitter (acetylcholine) into the synaptic cleft.
The neurotransmitter diffuses across the synaptic cleft and attaches to the post-synaptic membrane.
The membrane is depolarized generating an action potential.
The action potential is then picked up by the post-synaptic neuron and transmitted as a nerve impulse along the neurone.
