This Graph Shows the Changing Electrical Charge of a Neuron

question 338

Multiple Choice

This graph shows the changing electrical charge of a neuron when it activates. Of the choices given, which correctly labels the different phases depicted in the graph?

• A) 1 = action potential, 2 = stimulus threshold, 3 = refractory period, 4 = resting potential
• B) 1 = ions cross membrane, 2 = action potential, 3 = stimulus threshold, 4 = depolarization
• C) 1 = depolarization, 2 = action potential, 3 = stimulus threshold, 4 = repolarization
• D) 1 = resting potential, 2 = ions cross membrane, 3 = action potential, 4 = refractory period

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