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Cardiovascular

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Cardiovascular

Your heart which is located slightly left of the center of your chest, is the size of your fist and works as a muscular pump and is also protected by your rib cage. The heart is dived into a right side and left side they are divided and circulate blood and oxygen around your body, helping to prevent oxygen rich blood (red) and oxygen poor blood (blue) from mixing together. Oxygen-poor blood, "blue blood," returns to the heart after circulating through your body. The right side of the heart, composed of the right atrium and ventricle, collects and pumps blood to the lungs through the pulmonary arteries. The lungs refresh the blood with a new supply of oxygen, making it turn red.
The organs of the circulatory system the heart, it consists of four hollow chambers – two ventricles and two atria. All four chambers work quite like pumps and push blood throughout your body. The blood that moves towards the heart enters it through the atria and then goes out to your body through the ventricles. Another Organ are the blood vessels which allow blood to flow quickly from one region to another and then allow it to come back to your heart. Your blood vessels have a thin layer of squamous epithelium that prevents clots from forming. The layer is called endothelium and ensures that your blood cells stay inside the vessels all the time. There are three basic types of blood vessels, including capillaries, arteries and veins. Another one is the blood, your heart pumps blood throughout your body and travels through thousands of miles carrying water, nutrients, waste products and oxygen to and from your body cells. A young person will have up to a gallon of blood, whereas an adult will have about 5 quarts of blood. Your blood looks like an ordinary red liquid, but it's in fact made up of solids, liquids and small amounts of carbon dioxide and oxygen.

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