Question

Nodes of Ranvier are present at:

• A. Gaps in the cover of the nerve fibre.
• B. Collection of nerves in the heart.
• C. Covering of the nerve fibre.
• D. Swelling along the nerve fibre.

Answer 1

The correct option is A

Gaps in the cover of the nerve fibre.

The Nodes of Ranvier, also known as myelin sheath gaps, are the gaps (approximately 1μm in length) formed between the myelin sheaths generated by Schwann cells. Electrical impulses jump from these nodes.