MEDICAL PHYSIOLOGY

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 will normally be in the range of 70–80 mL. Since ventricular systole began with an EDV of approximately 130 mL of blood, this means that there is still 50–60 mL of blood remaining in the ventricle following contraction. This volume of blood is known as the end systolic volume (ESV).

Detailed explanation-3: -Stroke Volume (SV) is the volume of blood in millilitres ejected from the each ventricle due to the contraction of the heart muscle which compresses these ventricles. SV is the difference between end diastolic volume (EDV) and end systolic volume (ESV). Multiple factors can affect SV, eg.

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: -The cardiac output of a normal adult healthy person at rest is almost 5 litres. The volume of blood pumped out of the left ventricle in one beat is called the stroke volume. It is 70 ml.