The speed of an action potential depends on
A) whether an axon is myelinated or not myelinated.
B) thickness of the myelin sheath.
C) the diameter of the axon.
D) All of the choices are correct.

Question

Quizplus · Accepted Answer

The speed of an action potential is influenced by myelination (with myelinated axons conducting signals faster), the thickness of the myelin sheath (thicker myelin sheaths provide greater insulation and faster transmission), and the diameter of the axon (larger diameters reduce resistance to the flow of ions, speeding up the signal).

The Speed of an Action Potential Depends on