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zerohead

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Ñîïȫ(½ð±Ò+1): 2010-07-21 08:52:14
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The left ventricle pumps the blood through aorta, the body's main artery. The blood with high oxygen content is delivered to different organs around the body, at which gas exchange is performed between the blood and the tissues.
3Â¥2010-07-19 01:00:15
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zerohead

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Ñîïȫ(½ð±Ò+2, ·­ÒëEPI+1): 2010-07-19 00:42:40
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The circulatory system of animal is composed of heart and blood vessels. A human heart consists of several parts which are left ventricle, right left ventricle, left atria, and right atria.





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[ Last edited by zerohead on 2010-7-18 at 22:24 ]
2Â¥2010-07-18 22:00:04
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izhangxing

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Ñîïȫ(½ð±Ò+2): 2010-07-21 08:52:09
Animal circulatory system is composed of Cardiac and Vascular 2 points. The human heart from the left ventricular and right ventricular and left and right atrium structure. Left ventricular the issue of aorta and transportation oxygenated blood to body organs, gas exchange with organ cells and blood oxygen diffusion into cells for Cell Biology oxidation and metabolism of the cells during proliferation of carbon dioxide to make it into the blood of venous blood carbon dioxide. The blood respectively by the inferior vena cava and superior vena cava return to the right atrium and re - enter the right ventricle. Right ventricular issue of pulmonary artery, conveying of carbon dioxide blood to the lungs and pulmonary gas exchange, exhale carbon dioxide, and breathe in fresh oxygen and blood carbon dioxide into oxygen blood. The oxygen of blood pulmonary venous return to the left atrium and into the left ventricle. Complete double circulation of this cycle model called, and blood circulation channels of mammals and birds has the same pattern.
4Â¥2010-07-20 16:09:42
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