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Spatial Summation Presynaptic Neurones  Release Neurotransmitter Exceed Threshold

Spatial summation happens when neurotransmitter released from multiple different presynaptic neurons combines to exceed the threshold potential of the postsynaptic neuron, triggering an action potential.

- different presynaptic neurones - together release enough neurotransmitter to exceed threshold - action potential forms

Front What is spatial summation?
Back - different presynaptic neurones 
- together release enough neurotransmitter to exceed threshold
- action potential forms

Tags: nerves

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