Action potentials move along axons ________.
A) more slowly in axons of large diameter than in axons of small diameter
B) by activating the sodium-potassium "pump" at each point along the axonal membrane
C) more rapidly in myelinated than in unmyelinated axons
D) by reversing the concentration gradients for sodium and potassium ions

Question

Quizplus · Accepted Answer

Action potentials move more rapidly in myelinated than in unmyelinated axons because myelination provides insulation, allowing the action potential to jump between the nodes of Ranvier in a process called saltatory conduction, which speeds up signal transmission.

Action Potentials Move Along Axons ________