Magnitude of action potential in neuron, is determined by:
Correct Answer: Na+
Description: Ans: A (Na+) Ref: Pal GK. Nerve. In: Textbook of Medical Physiology. Ahuja Publishing House. 2007; 18: 158.Explanation:Depolarization (upstroke) phase of action potential in a neuron is due to Na+ influxRepolarization is due to K+ effluxMg2+, Ca2+ are not directly involved in generation of action potential in nerve
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