Neurophysiology

Just to prove that this site is about more than anatomy, here is a neurophysiology question for Year 2 students:

Administration of an experimental drug that acts on PNS myelin is shown to increase the space constant of an axon in a peripheral nerve. Action potentials traveling down the axon would be predicted to be

A. faster
B. larger
C. slower
D. smaller
E. unchanged

Correct answer and explanation will be posted next week.