Which of the events below occurs first during synaptic signaling? calcium enters the presynaptic cell voltage gated Ca2+ channels open neurotransmitter is released into the synaptic cleft action potential reaches the axon terminal of the presynaptic neuron
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Which of the following events occurs FIRST after an action potential arrives at an axon terminal? Neurotransmitter binds to receptors on the postsynaptic cells Voltage-gated calcium channels open Calcium ions enter the axon terminal Exocytosis of neurotransmitter-containing vesicles
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