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How the heart functions ... How the heart works, and how it can cause sudden death ; In order to understand why sudden death can happen, it helps to understand how the heart works. The heart is a specialised muscle that contracts regularly and continuously, pumping blood to the body and the lungs.
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www.sads.org.uk/heart_function.htm
www.sads.org.uk/heart_function.htm
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Learn about the normal heart and how the four chambers work together ... The heart has four chambers. The upper two chambers are the atria, and the lower two are the ventricles (Figure A). Blood is pumped through the chambers, aided by four heart valves. The valves open and close to let the blood flow in only one direction.
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www.americanheart.org/presenter.jhtml?identifier=770
www.americanheart.org/presenter.jhtml?identifier=770
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The heart, a hollow muscular organ, is located in the center of the chest. The right and left sides of the heart each have ... Function of the Heart ... The heart's only function is to pump blood. The right side of the heart pumps blood to the lungs, where oxygen is added to the blood and carbon dioxide is removed from it.
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www.merck.com/mmhe/sec03/ch020/ch020b.html
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A ventricle is a chamber of your heart, and so is an atrium. Learn about the functions of the left and right ventricles and atria, pulse rates and more. ... How Your Heart Works...
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www.howstuffworks.com/heart2.htm
www.howstuffworks.com/heart2.htm
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How does a normal heart work ... How does the heart function? ... The right and left coronary arteries branch off the aorta and then divide into smaller branches, supplying all portions of the heart with blood and oxygen. In order for the heart to function properly, it must receive a continuous supply of fresh oxygen-enriched blood.
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www.besthearthealth.com/about.html
www.besthearthealth.com/about.html
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The role of the heart is to pump oxygen-rich blood to every living cell in the body. In order to achieve its goal, it must continuously beat for a person’s entire lifespan. Because of its vital role, a non-beating heart always results in death.
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library.thinkquest.org/05aug/01883/functionofheart.htm
library.thinkquest.org/05aug/01883/functionofheart.htm
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Heart Functions ; The heart acts as four interrelated pumps. The right atrium receives deoxygenated blood from the body via the superior and inferior vena cava. It pumps the deoxygenated blood through the tricuspid valve to the right ventricle.
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www.tpub.com/corpsman/22.htm
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