This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Stroke volume is increased by ? \nSelect and explain. \nA. Increased end-diastolic and end-systolic volumes, B. Decreased end-diastolic and end-systolic volumes, C. Increased end-diastolic volume and decreased end-systolic volume, D. Decrased end-diastolic volume and increased end-systolic volume', 'role': 'user'}, {'content': "Answer: C \nExplanation: 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)", 'role': 'assistant'}]