Assertion: nervous system's neuron | /r/CapableOf | fire an action potential
Facets:
Source sentences:
text: This causes an influx of sodium ions into the postsynaptic cell, this short lived depolarization is called the excitatory postsynaptic potential (EPSP) and makes it easier for the neuron to fire an action potential.
text: When the depolarization reaches about -55 mV a neuron will fire an action potential.