An IPSP occurs when _____ channels open.

Question

Quizplus · Accepted Answer

An inhibitory postsynaptic potential (IPSP) is a hyperpolarization of the postsynaptic membrane caused by the opening of ligand-gated chloride channels. This causes an influx of negatively charged chloride ions into the cell, making the interior more negative and less likely to depolarize and fire an action potential. Calcium channels do not directly cause IPSPs, and voltage-gated chloride channels are rare in the nervous system.

An IPSP Occurs When _____ Channels Open