| http://www.w3.org/ns/prov#value | - he outer membrane; - The major positive ion inside a cell is K+ and the major positive ion outside a cell is Na+; - If the inside remains more negative than the outside, the neuron will stay inactive; - Many different types of stimuli excite neurons to become active and generate an impulse; - Normally Na+ ions cannot diffuse through the plasma membrane, but when the neuron is adequately stimulated
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