Tag: p wave
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Cardiac Cycle
The cardiac cycle is the sequence of events that occur in the heart during one complete heartbeat, starting with the contraction (systole) of the ventricles, followed by the relaxation (diastole) of the ventricles. The cycle includes the filling of the ventricles with blood during diastole and the ejection of blood into the circulatory system during…
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Electrocardiogram (ECG)
A typical heart beat on an electrocardiogram (ECG) consists of several components, including the P wave, the QRS complex, and the T wave. The P wave represents the electrical activity of the atria, the upper chambers of the heart, as they contract and pump blood into the ventricles, the lower chambers of the heart. The…