A) \[N{{a}^{+}}\]from intracellular fluid to extracellular fluid
B) \[N{{a}^{+}}\] from extracellular fluid to intracellular fluid
C) \[N{{a}^{+}}\] towards both directions
D) None of the above
Correct Answer: B
Solution :
Nerve impulse is a wave of bioelectric disturbance that passes along a nerve during conduction of an excitation. The electrochemical potential developed during epolarisation is called action potential during which \[N{{a}^{+}}\]from extracellular fluid move the intracellular fluid.
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