The volume of blood pumped by the heart in one minute is the caridac output. this increases during exercise.
At rest= 5 dm3
Trained athlete during maximum effort= 30 dm3.
Cardiac output depends on the volume of blood ejected from the left ventricle (the stroke volume) and the heart rate:
Cariac output= stroke volume x heart rate.
Stroke Volume: The stroke volume of blood pumped out of the left ventricle each time the ventricle contracts measured in cm3. for most adults at rest this is about 50-90cm3 which is pumped into each of the pulmonary artery and the aorta when the venricles contract.
The heart draws Blood into the atria as it relaxes…