Action Potentials Move Along Axons

question 26

Multiple Choice

Action potentials move along axons

• A)more slowly in axons of large than of small diameter.
• B)by the direct action of acetylcholine on the axonal membrane.
• C)by activating the sodium-potassium "pump" at each point along the axonal membrane.
• D)more rapidly in myelinated than in non-myelinated axons.
• E)by reversing the concentration gradients for sodium and potassium ions.