Describe how an action potential propagates along a myelinatedand an unmyelinated axon, including how the potential is spreadalong the membrane. How are these two processes similar and how arethey different? What two benefits do myelinated axons have overunmyelinated ones? Provide one way in which a myelinated axon issimilar to an electrical wire and one way in which an axon isdifferent than a wire. Why does multiple sclerosis (MS) preventtransmission in myelinated axons (that is, why can’t these axonsjust propagate the action potential in the same way that anunmyelinated axon does)? Finally, what if a drug 3 was developedthat allowed M.S. patients to use continuous propagation for all oftheir neurons all the time; what would be the impact of such adrug?
