ANATOMY

Detailed explanation-1: -Stroke volume is the difference between end-diastolic and end-systolic volumes; it is the volume ejected with each heart beat. The normal range is 50 to 100 ml.

Detailed explanation-2: -Cardiac output (CO) is the amount of blood pumped by the heart minute and is the mechanism whereby blood flows around the body, especially providing blood flow to the brain and other vital organs.

Detailed explanation-3: -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-4: -Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70 ml. Now to get cardiac output we have to multiply stroke volume with the normal heart rate of 72 beats/min and we get 5, 040 ml/min. This means that in one minute, a normal heart pumps about 5 litres of blood.

Detailed explanation-5: -In cardiovascular physiology, stroke volume (SV) is the volume of blood pumped from the left ventricle per beat.