Select the Last Step for Synaptic Signaling When the Action

question 92

Multiple Choice

Select the last step for synaptic signaling when the action potential arrives at the axon terminal of a presynaptic neuron.

• A) A neurotransmitter is released by exocytosis.
• B) Calcium flows in the synaptic knob.
• C) The neurotransmitter combines with protein receptor sites on the subsynaptic membrane.
• D) The permeability is altered in a postsynaptic neuron.
• E) None of these.

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