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Life Systems

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Kevin Clark

on 4 November 2014

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Transcript of Life Systems

Life Systems
The Heart is a double pump.
The Mammalian Heart
The Heart is composed of 4 chambers.
The Left and Right Atria
The Left and Right Ventricles
Inside the Human Heart
In physiological diagrams the left (your left) of the the diagram is the right side of the organ.
The Right and Left side of the Heart
The Heart has 4 vessels. (R to L)
Vena Cava (a vein)
Pulmonary Artery (an artery)
Aorta (an artery)
Pulmonary Vein (a vein)
The Heart
The Heart has 4 valves
Tricuspid Valve
Pulmonary Valve
Aortic Valve
Bicuspid (Mitral) Valve
Blood Flow
Deoxygenated Blood enters via the Vena cava into the Right Atria.
It is then passed through the Tricuspid valve into the Right Ventricle.
From here it is squeezed passed the pulmonary valve into the pulmonary artery to the Lungs.
Blood flow continued
Oxygenated blood enters via the pulmonary vein into the Left Atria.
The blood then passes into the Left Ventricle passed the Bicuspid Valve.
Then into the Aorta, passed the Aortic Valve, and to the body tissues.
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