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Which statement is correct regarding nerve impulse conduction ?
(1) The membrane potential change from positive to negative and then back again.
(2) Sodium ions flow out through ion channels and potassium ions flow in.
(3) Potassium channels close as the membrane potential becomes positive.
(4) The membrane potential becomes less negative due to opening of Na+ VGC.
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"becomes" (and any subsequent words) was ignored because we limit queries to 32 words.
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