Excitatory synapses. The neurotransmitter at excitatory synapses depolarizes the postsynaptic membrane (of a neuron in this diagram). 1  Binding of acetylcholine to its receptors on the postsynaptic cell opens up ligand-gated sodium channels. 2  These allow an influx of Na + ions, reducing the membrane potential.xcitatory synapses. The neurotransmitter at excitatory synapses depolarizes the postsynaptic membrane (of a neuron in this diagram). 1  Binding of acetylcholine to its receptors on the postsynaptic cell opens up ligand-gated sodium channels. 2  These allow an influx of Na + ions, reducing the membrane potential.
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1 A good number of new phones have a cutoff feature that stops charging once it reaches 100 percent and has a 3 stage charging method these phones are safer to charge using power banks and even if it reaches 100 percent this feature stops further entry of current and helps to prevent damage to the battery. A good number of new phones have a cutoff feature that stops charging once it reaches 100 percent and has a 3 stage charging method these phones are safer to charge using power banks and even if it reaches 100 percent this feature stops further entry of current and helps to prevent damage to the battery.