Important Body System: The Circulatory System

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One important body system is the circulatory system. The systems job is to pump blood to all parts of the body. The blood circulates inside of many tubes and blood vessels which are found in your body. Blood vessels carry the blood to all parts of the body. Oxygen goes into the blood every time we take a breath. Carbon dioxide is a kind of gas. The blood carries carbon dioxide from the cells to the lungs. When a person breathes out, the body is getting rid of carbon dioxide. Your circulatory system works twenty-four hours a day, seven days a week. It even works when you are sleeping. The circulatory system delivers food, fluids and chemicals to cells throughout your body. It helps to clear your body of waste and carries cells that fight diseases. If your circulatory system would stop working, your cells would starve. Sometimes a doctor would give a patient a vaccine directly into the circulatory system so the medicine should travel to the parts of the body that need it. The circulatory system is made up of three main parts: the heart, the blood vessels, and the blood. The two main kinds of blood vessels are arteries and veins. There are also smaller vessels called capillaries. Arteries and veins are connected by capillaries. A heart of a human is a muscle. The heart has a left side and right side. On the right side, blood enters the heart from the body and then goes from the right side of the heart and to the lungs. In the lungs, it picks up oxygen and returns to the left side of the heart. The oxygen and the blood are then pumped to the body. The heart contains valves. The valves function is to keep the blood flowing in one direction. Each side of the heart is divided into two parts. The upper chamber is called an...

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...In a drop of blood the size of a pine head there are about 5 million red blood cells, 10,000 white blood cells and 250,000 platelets. There are many organs that help with circulation. This is the process of how blood circulates through the body. 1. Blood enters the heart on the right side. 2. The right ventricle pumps blood to the lungs. 3. The lungs remove carbon dioxide from the blood. 4. The blood takes up oxygen and returns to the left side of the heart. 5. The left ventricle pumps the blood to the bod through the arteries. 6. The blood flows through the small intestine to pick up food water and medicine. 7. The blood flows through the live. This removes wastes and releases stored nutrients. 8. Capillaries deliver food, water, and medicine to the cells. They remove wastes and carbon dioxide. 9. The blood travels to the kidneys. These filter out more wastes and ex

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