Q. Which of the following statements is true?
A) Saltatory conduction is seen in non-myelinated nerve fibres
B) Nissl’s granules are found in muscles fibres
C) Non-myelinated nerve fibres do not posses nodes of Ranvier
D) Non-myelinated nerve fibres are completely enclosed by myelin sheath
Explanation
In myelinated nerve fibre, the myelin sheath is not continuous and remains interrupted at some places. These are known as nodes of Ranvier. These help in the saltatory conduction of nerve impulse. The non-myelinated nerve fibres do not possess nodes of Ranvier.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.