The passage of nerve impulse is associated with increase in permeability of which of the following ion:
Correct answer: A. Sodium
- A. Sodium
- B. Potassium
- C. Organic ions
- D. Inorganic ions
Explanation
Depolarization at the start of a nerve impulse occurs when sodium channels open and membrane permeability to sodium rises. Potassium permeability increases later as the neuron repolarizes.
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