The scenario
Depicts the sequence of ionic events during a cardiac ventricular myocyte action potential, triggered by a depolarizing stimulus and governed by threshold-dependent Na+ channel opening.
What is in this drawing
Read the decisions behind it.
01
Threshold reached triggers rapid Na+ influx (Phase 0)
02
If threshold not reached, return to resting state
Useful for teaching cardiac electrophysiology, understanding antiarrhythmic drug mechanisms, or modeling cardiac cycle events.
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