Which of the following is true of a postsynaptic potential (PSP) ?
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A neurotransmitter must be released into the synaptic cleft.; |
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A neurotransmitter must bind or fit into a receptor site.; |
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A postsynaptic potential is a graded response.; |
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It affects the probability of a neuronal impulse based on its size and polarity.; |
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All of the above alternatives are correct; |
CORRECT - Yes, a postsynaptic potential is dependent on the release of a neurotransmitter into the synaptic cleft that binds to a receptor site. A PSP is a graded response that affects the probability of the generation of a neuronal impulse based on its size and polarity.
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