Blood Circulation - the river of life
Blood services each cell with the necessities of life and carries away waste matter generated by metabolism

The Measure of Life

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Blood circulation - the river of Life

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How does it work
(clever science)

Historic quest - other methods of measurement

Social & Economic consequences

Practical applications - the Cascade Principle



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Diagram of blood circulation in the bodyLife is sustained by the continual flow of blood - pumped by the heart.

The heart circulates blood through two separate systems at the same time.
1. The Lungs - to charge the blood with Oxygen and release from the blood waste Carbon Dioxide.
2. The rest of the body - to supply the body cells with the oxygen, nutrients and control substances they need to sustain life and to remove the waste products of cell metabolism.

The Blood output leaving the heart (cardiac output) is a combined measure of the health of the heart (a pump) and the health of the circulatory system (the pipelines).

So the measure of flow is the measure of life! 

Haemodynamics is the study of blood flow to and from the body tissues.  The basis of this science is the realization that the heart and circulation system function in a similar way to a simple electrical circuit and that a simple formula similar to OHMS Law applies.

Blood circulation works in a similar way to Ohms Law

It should be obvious that the accurate measurement of cardiac output (Q) is of fundamental importance in being able to use heamodynamic concepts to diagnose and treat a wide range of heart and circulation problems.

Uscom Ltd. 2007