What is the relationship between the cardiac cycle and an ECG?
Open in App
Solution
Relationship between cardiac cycle and ECG:
The cardiac cycle attributes to a comprehensive heartbeat from its production to the commencement of the next beat. The cardiac cycle involves a complete contraction and relaxation of both the atria and ventricles and the cycle last approximately 0.8 seconds.
The electrocardiogram, or ECG, is a graphical representation of the heart's electrical exertion during the cardiac cycle.
The letters P to T represent each peak in the ECG
P-wave – atria depolarization or atrial contraction.
Depolarization of the ventricles or ventricular compression is the QRS complex.