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January 30, 2014

The Heart

The Heart The Heart Introduction You need your marrow for all(prenominal) your body needs. It pumps about 2000 gallons of blood a day. It takes about 20 seconds for blood to reach every cell in the body. An artery carries blood out from the nervus. A vein carries blood tonality to the heart. An average adult heart weighs about 10-13 ounces (300 to 350 grams). The rate which the heart pumps varies depending on what your doing. When at rest the heart pumps more slowly. When you go ballistic the heart rate increases to provide muscles and other tissues with additional group O they need. The typical heart rate is 72 beats per minute. apiece beat gives out 2-3 ounces of blood pumped into the arterial system. At this heart rate it beats about 104,000 times a day. The Superior and Inferior are the biggest veins in the body. The Superior is in reality the biggest. These veins stomach a lot of carbon dioxide and have oxygen-poor blo od. The aorta is the biggest arterial blood vessel in the whole body. Which allow for be co...If you want to hit a full essay, straddle it on our website:

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