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Arrange the steps to chemical synapse:
 
chemical synapase procedure.jpg
 
Answer variants:
At the presynaptic nerve terminal, the action potential arrives.
Calcium-mediated exocytosis releases neurotransmitters.
On the postsynaptic membrane, transmitters bind to receptors. Then, ion channels are opened.
Opening voltage-gated calcium ion channels, then they are entering into the presynaptic terminal
Ion transport across the postsynaptic membrane. Due to this, membrane potential shifts in the postsynaptic membrane. Results in the formation of synaptic potential generation.
  
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