ELECTROCARDIOGRAM [ECG] Generally we all heared term "ECG" most of the time but most of you don't know what exact it is and why it is so important. Let's know about it ! DISCOVERED by the Dutch Physiologist Einthoven willem( The father of ECG). Electrocardiogram[ECG] is the graphical registration of electrical activities of the heart, which occure prior to the onset of mechanical activity of the heart. The technique by which the electrical activities of the heart are studied called Electrocardiography and the instrument (machine) is called Electrocardiograph . ECG is the summed electrical activity of all cardiac muscle fibers recorded from the body. HOW IT IS RECORDED The paper that is used for recording ECG is called ECG paper and Electrocardiographic grid refers to the markings on ECG paper. ECG paper has horizontal and vertical lines at regular intervals of 1mm. •Time duration of ECG waves is plotted horizontally on X-axis...