ECG deals with the study of the electrical activity of the
heart muscles.The potentials originated in the individuals fibers of the heart muscles are added to produce the ECG waveform.It is otherwise called as EKG .ECG sometimes called called EKG which is derived from the German electrocardiogram. The electro cardiogram reflects the rhythmic electrical depolarization and depolarization of the myocardium associated with the contractions of the atria and
ventricles. The shape, time interval and amplitude of the ECG give the details of the state of the heart. Any form of arrhythmia can be easily diagnosed using electrocardiogram. But the valvular defects can be identified by honocardiography which will be dealt later. We know that the heart is divided into 4 chambers. The top 2 chambers are atria and lower 2 chambers are ventricles. The Right atrium receives blood from the veins and pumps it into right ventricles. The right ventricles pump the blood from the veins and pump it into right ventricles. The right ventricles pump the blood into the lungs where it is purified and oxygenated. The oxygen enriched blood enters the left atrium from which it is pumped into the left ventricle. The n the left ventricles pumps the blood into arteries through Aortic valve.visit about:Phonocardiography:
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