MICROANATOMY

Detailed explanation-1: -The definition of stroke volume is the volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction.

Detailed explanation-2: -Stroke volume is the amount of blood ejected from the ventricle with each cardiac cycle. It can be readily calculated by subtracting the end-systolic volume from the end-diastolic volume. Multiplying the stroke volume by the heart rate yields the cardiac output, typically reported in liters per minute.

Detailed explanation-3: -It pumps oxygen-rich blood up into the body’s main artery, called the aorta. The blood then goes to the rest of the body. According to the American Heart Association: A left ventricle (LV) ejection fraction of about 50% to 70% is categorized as normal.

Detailed explanation-4: -Overview. Your stroke volume is the amount of blood your heart pumps each time it beats, and your heart rate is the number of times your heart beats per minute. During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself.

Detailed explanation-5: -(i) During a cardiac cycle each ventricle pumps out approximately 70mL of blood which is called the stroke volume.