CARDIAC ELECTRICAL ACTIVITY-RELATIVE TO HEART SOUNDS
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SUMMARY
1. First heart sound: closure of the mitral & tricuspid valves. Corresponds to the end of the R wave.
2. Second heart sound: closure of the aortic & pulmonary valves. Corresponds to the end of the T wave.
Image: Dr. Appukutty Manickam.
Reference(s)
Barrett, K.E., Barman, S.M., Brooks, H.L., X, J. and Ganong, W.F. (2019). Ganong’s review of medical physiology. 26th ed. New York: Mcgraw-Hill Education
