Cardiac Cycle, Dr. D. Penney

Figure 1.03. The cardiac cycle as a loop, independent of time. Abbreviations: AVVC = atrioventricular valve closure; AVVO = atrioventricular valve opening; EDV = end-diastolic volume; ESV = end-systolic volume; IVVC = Isovolumic ventricular contraction; IVVR = isovolumic ventricular relaxation; SLVC = semi-lunar valve closure; SLVO = semi-lunar valve opening.

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