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The Heart And Its Electrical Signals – Electrocardiogram ECG

The human heart is like a machine that operates on the basis of electrical signals. It beats and pumps blood in various parts of the body due to rhythmic contraction and expansion.

This pumping activity is stimulated by an electrical signal generated by the heart's natural pacemaker, the SA node.

But sometimes it can break. An electrocardiogram (EKG) is a diagnostic heart test that helps understand abnormalities in the heart. You can also buy ECG patient simulator at

The process is simple and inexpensive. Patients should lie on an examination table with about 10 to 12 electrodes placed on their limbs – arms and legs and the skin of the chest.

The process only takes about 10 minutes and causes no pain or damage. Under normal circumstances, the sinus node sends electrical impulses to contract the upper part of the heart, which divides into two atria.

This signal is then transmitted to the lower limb by two ventricles that contract after the ear. When an electrocardiogram (EKG) is connected to various parts of the body through metal rods, it records these generated electrical signals.

This information is recorded in the form of an EKG reading called an electrocardiograph. The doctor will examine the "PQRST" curve, which is nothing more than a wavy representation of the results.