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(B) The electrical potential difference across the resting plasma membrane of a neuron is called the resting potential. In a resting state,the axonal

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Resting potential

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(B) The electrical potential difference across the resting plasma membrane of a neuron is called the resting potential. In a resting state,the axonal membrane is more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions. Consequently,the inside of the axon remains negatively charged relative to the outside,typically measured at approximately $-70 \ mV$.

The potential difference between the outside and inside of a nerve fiber before excitation is known as:

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