Solved UPSC CDS/OTA Question
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Q · Nervous Systemmedium · 45s
The rapid rise in membrane potential during an action potential is called:
TopicNervous System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Depolarization occurs when voltage-gated Na⁺ channels open, allowing Na⁺ influx and making the inside more positive, initiating the action potential spike.
Final Answer: Option C - Depolarization