The most rapid action potentials are conducted on
A) thick, myelinated axons.
B) thick, unmyelinated axons.
C) thin, myelinated axons.
D) thin, unmyelinated axons.
E) dendrites.

Question

Quizplus · Accepted Answer

Thick, myelinated axons have a higher conduction velocity because the myelin sheath insulates the axon and allows for saltatory conduction, meaning the action potential jumps from node of Ranvier to node of Ranvier, skipping the myelinated regions in between. This increases the speed of the action potential propagation.

The Most Rapid Action Potentials Are Conducted on