The Cardiovascular Atlas

CVD Atlas

Figure 7. The action potential in the sinoatrial node and in contractile myocardial cells. Phase 4 of the action potential in the sinoatrial node is called ‘pacemaker potential’, because it is responsible for the spontaneous repetitive depolarization.

Figure 7. The action potential in the sinoatrial node and in contractile myocardial cells. Phase 4 of the action potential in the sinoatrial node is called ‘pacemaker potential’, because it is responsible for the spontaneous repetitive depolarization.

Figure 7. The action potential in the sinoatrial node and in contractile myocardial cells. Phase 4 of the action potential in the sinoatrial node is called 'pacemaker potential', because it is responsible for the spontaneous repetitive depolarization.

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