Grade 12th pass10 grade science

Nodes of Ranvier are found in A) Non-myelinated nerve fibres B) Myelinated nerve fibres C) Both (A) and (B) D) None of the above

Harshit Singh

4 Years agoGrade 12th pass

1 Answer

Jayesh Vashishtha

4 Years ago

Dear student,

The axon of myelinated nerve fibres is covered by a lipid-rich membrane called the myelin sheath. The myelin sheath is formed by Schwann cells and each Schwann cell covers a part of the axon. The region where axon is not covered by myelin sheath is the junction of the adjacent myelinated segments, called as the node of Ranvier.

This particular covering is absent in non-myelinated neurons.
Thus, the correct answer is option B.

regards,

team Askiitians