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Everyone knows that the heart is a vital organ. We cannot live without our heart. However, when you get right down to it, the heart is just a pump. A complex and important one, yes, but still just a pump. As with all other pumps it can bec...
http://www.howstuffworks.com/heart.htm
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That's because you're looking at an illustration of somebody else's heart. To think about how your own heart works, imagine wearing this illustration on your chest. Did you know that your heart beats over 100,000 times a day?
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www.pbs.org/wgbh/nova/heart/heartmap.html
www.pbs.org/wgbh/nova/heart/heartmap.html
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The heart is essentially a muscle(a little larger than the fist). Like any other muscle in the human body, it contracts and expands. Unlike skeletal muscles, however, the heart works on the "All -or-Nothing Law".
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www.worldinvisible.com/apologet/humbody/heart.htm
www.worldinvisible.com/apologet/humbody/heart.htm
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Your heart and circulatory system make up your cardiovascular system. Your heart works as a pump that pushes blood to the organs, tissues, and cells of your body. Blood delivers oxygen and nutrients to every cell and removes the carbon dioxide and waste products made ... Anatomy of the Human Heart with Flash Illustration...
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www.texasheartinstitute.org/HIC/anatomy/Anatomy.cfm
www.texasheartinstitute.org/HIC/anatomy/Anatomy.cfm
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Each day the average heart "beats" (or expands and contracts) 100,000 times and pumps about 2,000 gallons of blood. In a 70-year lifetime, an average human heart beats more than 2.5 billion times, pumping approximately 1 million barrels of blood. ... Map of the Human Heart...
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www.ynhh.org/cardiac/heart/index.html
www.ynhh.org/cardiac/heart/index.html
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The heart is a beating muscle whose purpose is to transport blood through the body. Learn about the different parts of the heart and how it works. ... The heart is a beating muscle whose purpose is to transport blood through the body. Learn about the different parts of the heart, and how it works.
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video.about.com/heartdisease/How-the-Heart-Functions.ht...
video.about.com/heartdisease/How-the-Heart-Functions.htm
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NOVA Online presents Electric Heart ... Map of the Human Heart; Put your finger on the pulse of how the human heart works with an automatically changing color graphic of a heart in cross-section.
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www.pbs.org/wgbh/nova/eheart/
www.pbs.org/wgbh/nova/eheart/
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To simplify how blood flows through a normal, healthy heart think of the heart as a house with: ... The heart has 2 small back rooms: ... As in your house the heart house also needs plumbing. The plumbing in the heart house delivers fresh blood from the aorta to supply the walls of the heart with blood. Remember the walls of...
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www.childrensheartinstitute.org/educate/heartwrk/hearth...
www.childrensheartinstitute.org/educate/heartwrk/hearthse.htm
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Columbia/HCA Healthcare Corporation presents this 3-part interactive exploration of the human heart. ... (Click on Health Movies.) The animated movie describes the anatomy of the heart, explains how the heart works to pump blood through the body, and discusses the effect of exercise on the heart. The information provided is...
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www.education-world.com/a_sites/sites005.shtml
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