Question

Factor(s) affecting speed of conduction of nerve impulse across myelinated axon include(s)

• A. amount of myelination
• B. axon diameter
• C. temperature
• D. All of the above

Answer 1

The correct option is D All of the above

Action potentials propagate more rapidly along the myelinated axons than along the non-myelinated axons.
Larger diameter axons propagate action potential faster than smaller ones due to their large surface area.
Axons propagate action potentials at lower speeds when cooled.