<unk>  is the amount of blood pumped by the left ventricle of the heart in one contraction.
The<unk>  is not all of the blood contained in the left ventricle. The heart does not pump all the blood out of the ventricle. Normally, only about two-thirds of the blood in the ventricle is put out with each beat. What blood is actually pumped from the left ventricle is the<unk>  and it, together with the heart rate, determines the cardiac output.
Stroke volume
Cardiac output
Mean arterial pressure
Ventilation/perfusion ratio
Ventricular pressure
Volumetric flow rate
Arteriovenous oxygen difference
Cardiovascular product