Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ - decoded step-by-step.
Solve it the standard way once - then learn the shortcut.
Q · Nervous Systemmedium · 45s
Which cell type in the PNS forms myelin sheaths?
TopicNervous System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Schwann cells myelinate individual PNS axons, wrapping their plasma membrane around the axon to form multilayered myelin sheaths that enhance action potential conduction speed.
Final Answer: Option C - Schwann cells