A local hyperpolarization that changes a postsynaptic neuron's membrane from resting potential to ^-85 mV is: A) a saltatory stimulus. B) a temporal stimulus. C) an inhibitory postsynaptic potential (IPSP). D) an excitatory postsynaptic potential (EPSP).

Question

Quizplus · Accepted Answer

An inhibitory postsynaptic potential (IPSP) is a kind of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential. Hyperpolarization, such as changing the membrane potential to -85 mV, is characteristic of an IPSP.

A Local Hyperpolarization That Changes a Postsynaptic Neuron's Membrane from Resting