AIPMT PRELIMS2008Zoology-Neural Control and Coordination
AIPMT PRELIMS 2008 Zoology Nerve Impulse MCQ Question
Type: MCQ-conceptual-Medium-Class 11
During the propagation of a nerve impulse, the action potential results from the movement of:
A
K⁺ ions from intracellular fluid to extracellular fluid
B
Na⁺ ions from extracellular fluid to intracellular fluid
C
K⁺ ions from extracellular fluid to intracellular fluid
D
Na⁺ ions from intracellular fluid to extracellular fluid
Correct Answer
Option B
Detailed Explanation
During a nerve impulse, sodium ions (Na⁺) move into the cell, causing depolarization.
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