Question

Which among the following is the role of the "Nodes of Ranvier"?

• A. Regulates the potential difference within and outside the nerve fibre
• B. Separates the axon
• C. Reduces the speed of the action potential
• D. Speeds up the action potential

Answer 1

The correct option is D

Speeds up the action potential

The nodes of Ranvier are gaps present between myelinated axons. They facilitate the rapid conduction of impulses by speeding up the action potential.