A signal that increases the chance the neuron will fire is called a ___.
A) excitatory presynaptic potential
B) inhibitory presynaptic potential
C) excitatory postsynaptic potential
D) inhibitory postsynaptic potential

Question

Quizplus · Accepted Answer

An excitatory postsynaptic potential (EPSP) is a signal that increases the likelihood that the neuron will fire an action potential. These EPSPs are caused by the influx of positively charged ions, such as sodium, which make the inside of the neuron more positive, thus bringing it closer to the threshold for firing an action potential.

A Signal That Increases the Chance the Neuron Will Fire