Electrocardiogram

• Graphical respresentation of the electrical sequence of the Heart.

• P Wave

  • Spreads the signal through the atria to the atrioventricular node
  • This sends blood to the ventricles
  • The P wave in an Electrocardiogram means what? This means that the electrical signal is spread through the atria until the atrioventricular node.

• QRS Complex

  • Contracts ventricles and pushes blood up
  • Depolarizes the ventricles
  • The QRS complex in an Electrocardiogram contracts the ventricles and pushes blood up. This also depolarizes the ventricles.

• T Wave

  • Repolarizes the ventricles
  • The T wave in an Electrocardiogram repolarizes the ventricles and prepares it to pump blood again.