Q. The velocity of action potential propagation
A) Is independent of an axon’s diameter
B) Depends on the thickness of the myelin around the axon
C) Will be unaffected if the axon becomes demyelinated
D) Is fastest in non-myelinated axons
Explanation
The velocity of conduction of action potential propogation is fastest in large diameter myelinated axons than in unmyelinated axons. In myelinated fibres,, conduction velocity is directly proportional to the thickness of the myelin sheath.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.