Which of the following will increase the speed of an action potential moving down an axon?

I) Action potentials move faster in larger diameter axons.
II) Action potentials move faster in axons lacking potassium ion channels.
III) Action potentials move faster in myelinated axons.
A) only I and II
B) only II and III
C) only I and III
D) I, II, and III


Answer: C

Biology & Microbiology

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