Cardiac Action Potential & Pacemaker
HardHigh-yieldPhysiology · CVS
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The cardiac action potential (AP) is the electrical signature of every heartbeat, and its shape differs fundamentally between working myocardium and nodal tissue. Mastering the ionic basis of each phase unlocks antiarrhythmic pharmacology, ECG interpretation, channelopathies, and accessory-pathway physiology — one of the densest high-yield clusters in NEET PG Physiology. The heart has two electrically distinct cel…
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