CARDIODYNAMICS. KEY. EDV = End-diastolic volume. ESV = End-systolic volume. Stroke volume. 120. D. ESV. 80. C. One cardiac cycle. Left ventricular pressure (mm Hg). 40. EDV. B. A. 0. 65. 100. 135. Left ventricular volume ( mL ). Cardiac Cycle.
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Ejection Fraction – is the fraction of the end-diastolic volume that is ejected with each beat, that is, it is stroke volume (SV) divided by end-diastolic volume (EDV),
is a commonly used measure of cardiac performance.
stroke volume / end diastole volume X 100%, normal range, 55-65%.
1. Autonomic innervation
Tachycardia= Resting HR> 100 beats/min
Bradycardia=Resting HR<60 beats/min
Length-force relationships in intact heart: a Starling curve