Question

Impulses travel much more rapidly along the myelinated nerve.

• A. True
• B. False

Answer 1

The correct option is A True

1. Myelinated nerves are those that possess myelin sheaths on the axon.
2. The sheath acts as biological electrical insulation that provides resistance to the flow of the nerve impulse.
3. The nodes of Ranvier are the sites where the myelin sheath is absent and does not provide any resistance.
4. The action potential jumps as an electrical current from one node to the next.
5. The arrival of current at one node opens the sodium ions channel, creating another current that passes to another nose and so on.
6. Thus making the impulse travel faster.

Final answer: The given statement is False.