The total amount of energy consumed by all the Na+fK+ ATPases is much less in myelinated axons than in unmyelinated axons.

Myelinated axons can conduct many more action potentials per second than can unmyelinated axons.

The size of action potential depolarization is much greater in myelinated axons than in unmyelinated axons.

Voltage-gated potassium channels do not play a role in repolarization in unmyelinated axons.