<prompt> Stroke volume is increased by ?Increased end-diastolic and end-systolic volumesDecreased end-diastolic and end-systolic volumesIncreased end-diastolic volume and decreased end-systolic volumeDecrased end-diastolic volume and increased end-systolic volume  <response>: Ans. is c i.e., Increased end-diastolic volume and decreased end-systolic volumeThe stroke volume is the amount of blood pumped out by left ventricle in each stroke.Stroke volume is given by the difference between end-diastolic ventricular volume the volume of blood in the left ventricle at the end of diastole; normal 120 inl and end-systolic ventricular volume the volume of blood at the end of systole; normal 50 ml.Stroke volume 70 ml End-diastolic ventricular volume 120 ml - End-systolic ventricular volume 50 ml 