Postsynaptic potential

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Definition

noun

A change in the membrane potential of the postsynaptic cell caused by the action of neurotransmitters released by the presynaptic cell.


Supplement

A postsynaptic potential is a graded potential whose function is to determine if the action potential is initiated or inhibited. Thus, a postsynaptic potential may be an inhibitory postsynaptic potential or excitatory postsynaptic potential.


Related terms: