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Hearst Metrotone News
A cardiologist uses medical equipment to check a patient's pacemaker.
A cardiologist uses medical equipment to check a patient's pacemaker.
Khan Academy
Khan Academy: New Topic: Action Potentials in Pacemaker Cells
Find out how the pacemaker cells use the movement of sodium, calcium, and potassium to get your heart beating! [15:40]
Khan Academy
Khan Academy: Action Potentials in Pacemaker Cells
Find out how the pacemaker cells use the movement of sodium, calcium, and potassium to get your heart beating! [15:40]