The Importance Of The Cardiovascular System

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The cardiovascular system gets rid of waste products and oxygen and nutrients is brought to the body by it. This system is made up of the blood, blood vessels and the heart. These work together to transport the oxygen and nutrients. The cardiovascular system additionally helps to control an individuals temperature, spreading proteins and hormones and various other chemicals to different parts of the body. In the cardiovascular system the heart moves the blood around the body (acts like a pump) and different types of blood vessels (e.g. arteries, veins and capillaries) have well defined features that make viable their functions in the body’s circulatory system.
The heart is pretty small because it is around the same size as a persons fist. The
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The blood vessels that bring blood away from the heart are named arteries and veins are the blood vessels that carry blood to the heart. Arteries have a high pressure of blood flow in them and this is why they have thick, elastic, muscular walls and most arteries carry oxygen filled blood. This means that veins carry deoxygenated blood and because the circulation of blood in veins are at a lower pressure the walls are a lot more thinner and tend to be much less elastic than the walls of arteries. Some veins have one way valves. These valves are to help the blood move towards the heart. Arterioles and venules are just arteries and veins that end up branching into smaller blood vessels. A large network of very small blood vessels named as capillaries split the arterial and venous circulation. The capillaries which have very tiny, thin-walled vessels authorise nutrients, oxygen, carbon dioxide, a number of cells and little chemicals to cross between the circulation and body tissues. The capillaries in the body finish the final stage in the cardiovascular system which involves the pick up and

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