What would probably happen if a long neuron had one continuous myelin sheath down the length of the axon with no nodes of Ranvier?
A) The signal would fade because it is not renewed by the opening of more sodium channels.
B) There could be no action potential generated at the axon hillock.
C) The action potential would be propagated nearly instantaneously to the synapse.
D) None of the above could happen.

Question

Quizplus · Accepted Answer

Nodes of Ranvier act as points where the signal is renewed through the opening of more sodium channels, allowing for the propagation of the action potential down the axon. Without them, the signal would fade and not be able to continue down the length of the axon.

What Would Probably Happen If a Long Neuron Had One