How the Heart Works

The respiratory and circulative systems are very important go to pieces of the body. To arouseher, they work in many different ways. The heart is a hollow muscular organ. Its the main part of the circulatory system. It is used to help pump blood into rest of the body. It is bugger off behind the sternum, in-between the two lungs. The lungs are a support of organs that are part of the respiratory system. The right lung has common chord lobes and because the diaphragm is higher up on the right establishment to make room for the liver, is wider and shorter than the left(a) over(p) lung. The left lung is thinner and long than the right, because there is a notch for the heart to fit. When blood flows from the left ventricle to the rest the body, except for the lungs, and rump to the right atrium, is called dogmatic circulation. This system carries nutrients and oxygen to body tissues and to remove carbon dioxide and other wastes from the tissues. All systematic arteries are branched from the aorta. Blood comes substantiate to the heart through the general vein. All of the veins in the systemic system flow into either the superior or wanting(p) vena cava. Then they empty into the right atrium. When the right atrium is spirited with blood, the valve opens and the blood goes into the right ventricle. It pumps the blood through the pulmonary arteries an thence into the lungs. The pulmonary artery splits. Some of the blood goes into the left lung, and obturate to blood goes into the right lung. The oxygen and carbon dioxide exchange takes go under in the alveoli. Alveoli are little sacs at the end of the bronchial tubes. Each alveolus is served by tiny blood vessels called capillaries. nuclear number 8 in the alveolus crosses the... If you want to get a broad essay, order it on our website: BestEssayCheap.com

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