electrocardiogram

Examples of electrocardiogram in the following topics:

• Nerve Conduction and Electrocardiograms

  • An electrocardiogram (ECG) is a record of the voltages created by the wave of depolarization (and subsequent repolarization) in the heart.
  • Explain purpose of the electrocardiogram and identify functions performed by electric currents in the nerve system

• Electric Activity in the Heart

  • In the atria the electrical signal moves from cell to cell (see section on nerve conduction and the electrocardiogram) while in the ventricles the signal is carried by specialized tissue called the Purkinje fibers which then transmit the electric charge to the myocardium. shows the isolated heart conduction system.
  • Atrial and ventricular discharge through the Purkinje trees is assigned on a standard Electrocardiogram as the P Wave and QRS complex, respectively.