write a essay on ECG
When a person suffers from chest pain, the doctor immediately takes an ECG. Get information about ECG.
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The electrocardiogram (ECG) is a graphic record of electrical events of the cardiac cycle i.e. heartbeat. The cardiac impulse is spontaneously generated in the sinus node and this spontaneous rhythmic contractility is a unique property of cardiac muscle.
This electrical impulse is formed in the sinus node at regular intervals at the rate of 60 to 90 beats per minute in a healthy adult and the cardiac muscle contracts at the rate generated by the sinus node.
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