The nerve fibre in its resting stage is

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(A) In a resting nerve fibre (a nerve fibre that is not conducting an impulse),sodium ions $(Na^{+})$ predominate in the extracellular fluid,whereas p

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More permeable to $K^{+}$

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(A) In a resting nerve fibre (a nerve fibre that is not conducting an impulse),sodium ions $(Na^{+})$ predominate in the extracellular fluid,whereas potassium ions $(K^{+})$ predominate in the intracellular fluid (within the fibre).This results in the fact that the resting membrane has a very low permeability for $Na^{+}$ ions,whereas it has a significantly higher permeability for $K^{+}$ ions.

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