Dr. Askins performs an electrophysiology experiment. She records a neuron firing an action potential. What voltage does she record during each action potential spike?
A) -70 mV
B) -55 mV
C) +35 mV
D) +55 mV
E) +70 mV

Question

Quizplus · Accepted Answer

During an action potential, the peak voltage recorded is typically around +35 mV, which is the depolarization phase where the inside of the neuron becomes positively charged relative to the outside.

Dr Askins Performs an Electrophysiology Experiment