The conduction velocity of an action potential
A) is always the same, no matter how large the axon is.
B) varies, depending on where it is taking place in the brain.
C) varies, depending on the diameter of the axon.
D) is dependent upon the water content in the myelin of each specific neuron.

Question

Quizplus · Accepted Answer

The conduction velocity of an action potential varies depending on the diameter of the axon. Larger diameter axons conduct action potentials faster than smaller diameter axons. This is because larger axons offer less resistance to current flow, allowing the action potential to travel faster along the axon.

The Conduction Velocity of an Action Potential