Action potentials move along axons
A) more slowly in cons of large tan in small diameter
B) by the direct action of acetylcholine on the axons membrane
C) by activating the sodium-potassium pump at each point along the axon membrane
D) more rapidly in myelinated than in non-myelinated axons
E) by reversing the concentration gradient for Ca ions
Answer: D) more rapidly in myelinated than in non-myelinated axons