The difference between an IPSP and an EPSP is that an EPSP produces
A) membrane depolarization and makes an action potential less likely.
B) membrane depolarization and makes an action potential more likely.
C) membrane hyperpolarization and makes an action potential less likely.
D) membrane hyperpolarization and makes an action potential more likely.
E) graded membrane depolarization,while an IPSP produces an all-or-none response.

Question

Quizplus · Accepted Answer

An EPSP (excitatory postsynaptic potential) produces membrane depolarization, which makes it easier for an action potential to occur. This is because depolarization brings the membrane potential closer to the threshold for firing an action potential. In contrast, an IPSP (inhibitory postsynaptic potential) produces membrane hyperpolarization, which makes it more difficult for an action potential to occur by moving the membrane potential further away from the threshold.

The Difference Between an IPSP and an EPSP Is That