Item #6 of 10

The direction taken by a propagating action potential is determined by _______________________.

the responsiveness of the surrounding axonal membrane;
the axon's diameter;
myelination of the axon;
the axon's length;
none of the alternatives provided is correct;

CORRECT - Yes, action potentials will propagate in the direction of membrane which is in a state of polarization closest to the threshold of excitation.

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