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., Boitano, S., Brooks, H.L., Weitz, M., Brian Patrick Kearns, Ganong, W.F. and Mcgraw-Hill Education (Firm (2016). Ganong’s review of medical physiology. 25th ed. New York: Mcgraw Hill Education.
Hall, J.E. and Hall, M.E. (2020). Guyton And Hall Textbook Of Medical Physiology. 14th ed. S.L.: Elsevier - Health Science.
West, J.B. and Luks, A.M. (2021). West’s Pulmonary Pathophysiology. Lippincott Williams & Wilkins.
