Left Ventricular Pressure-Volume Loop for Normal Adult aortic valve closes EJECTION 120 aortic valve opens End-systolic volume 80 工EE Stroke Volume 40 OIWNOAOSI End-diastolic volume OIWn70/ DIASTOLE 乙6 0 mitral valve closes mitral valve opens50 100 150 LEFT VENTRICULAR VOLUME(ml)