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Elemental Human Body System.
C a r d i o v a s c u l a r
The cardiovascular system of the human body has one distinct job; that is to pump the blood to the different parts of the body. The central organ in this system is the heart. It is made up of cardiac tissue and its job is to pump the blood. It first pumps the blood to the lungs to get oxygen, and then to the various parts of the body for distribution. The blood travels through a series of arteries and veins. The difference between the two is that arteries carry oxygenated blood from the heart ...