Suspicious Minds

This beam is then divided into the right branch and the left Branch, which lead the impulses towards the apex of the heart. The signals are then passed to the Purkinje fibers, Directed upwards and dispersed through the ventricular myocardium. The electrical activities of the heart can be Recorded in the form of an electrocardiogram, ECG or EKG. The ECG is a recording composed of all the action Potentials produced by the nodes and myocardial cells. Each wave or segment of the ECG corresponds To an event of the cardiac electrical cycle. When the atria are filled with blood, The sinoatrial node is triggered, Electrical signals are scattered Throughout the atria and cause them to depolarize. It is represented by the P wave of the ECG. Atrial contraction, Or atrial systole Occurs more or less 100 Milliseconds after the start of the P wave.