Dr Blanchard Is Giving a Lecture About the Propagation of the Action

Multiple Choice

 Dr. Blanchard is giving a lecture about the propagation of the action potential. What would she tell the class?

A) That the process of an action potential repeats itself over and over down the length of the axon thanks to the diffusion of sodium ions.
B) That the process of an action potential repeats itself over and over down the length of the axon thanks to the diffusion of potassium ions.
C) The action potential moves down the length of the axon because all the sodium channels open all at once after the neuron reaches threshold.
D) The action potential moves down the length of the axon because all the potassium channels open all at once after the neuron reaches threshold.