Volume determining preload is: (A) End diastolic volume of ventricles, (B) End systolic volume, (C) Volume of blood in aorta, (D) Ventricular ejection volume
Answer is A. Ans. (a) End diastolic volume of ventriclesRef: Ganong, 25th ed/p.544Preload is End diastolic volume of ventriclesAfterload is the aortic pressure