Action Potentials Move Along Axons

question 58

Multiple Choice

Action potentials move along axons

• A) more slowly in axons of large than in 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.