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Define a Cardiac Output. - Biology

Define a cardiac output.

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Solution 1

The amount of blood pumped by heart per minute is called cardiac output. It is calculated by multiplying stroke volume (volume of blood pumped by each ventricle per minute) with heart rate (number of beats per minute). The heart of normal person beats 72 times per minute and pumps out about 70 mL of blood per beat. Therefore, cardiac output averages 5000 mL or 5 litres

Solution 2

Cardiac output is defined as the amount of blood pumped out by the ventricles in a minute.

Concept: Circulatory Pathways - Cardiac Cycle
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NCERT Class 11 Biology Textbook
Chapter 18 Body Fluids and Circulation
Q 12.2 | Page 289
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