Which of These Does Not Contribute to the Cessation of the Signal

question 167

Multiple Choice

Which of these does not contribute to the cessation of the signal in a synaptic transmission?

• A) Synaptic vesicles secrete neurotransmitter by exocytosis.
• B) Neurotransmitter escapes from the synapse into the nearby extracellular fluid.
• C) Neurotransmitters are no longer released.
• D) The axon terminal reabsorbs some neurotransmitters by endocytosis.
• E) Enzymes in the postsynaptic cell break down some neurotransmitters.

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