During the transmission of a nerve impulse,th | vedclass

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(B) In a resting state,the axonal membrane is polarized,meaning the inside is negative relative to the outside. When a stimulus is applied,the membran

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First negative,then positive,and back to negative

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(B) In a resting state,the axonal membrane is polarized,meaning the inside is negative relative to the outside. When a stimulus is applied,the membrane becomes permeable to $Na^+$ ions,causing depolarization where the inside becomes positive. This is followed by repolarization,where the membrane becomes permeable to $K^+$ ions,causing the inside to return to its original negative state. Therefore,the charge changes from negative to positive and back to negative.

During the transmission of a nerve impulse,the potential inside the membrane undergoes which of the following changes in charge?

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