Compare and contrast the molecular events of the action potential in the pacemaker cells of the SA node to those in a ventricular (contractile) cardiomyocyte

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Compare and contrast the molecular events of the action potential in the pacemaker cells of the SA node to those in a ventricular (contractile) cardiomyocyte. Be sure to point out how these molecular events underlie the differences in shapes of the two types of potentials.

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