4 11 p 99 some na channels still inactivated potassium

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Unformatted text preview: lative Refractory Period Fig. 4-11, p. 99 • Some Na+ channels still inactivated • Potassium current still hyperpolarizing • Can trigger an AP with strong stimulus Action Potential Propagation Action Initiated by graded potentials Changes in Membrane Potential Fig. 4‐1, p. 88 Passive Propagation along a membrane Fig. 4‐2, p. 89 Fig. 4‐3, p. 90 • The voltage change across the membrane gets smaller with distance from the initiation zone....
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