Physiological Changes During Exercise

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1a.To know how the heart adapts during exercise, an understanding of the cardiovascular system is needed. Main function of cardiovascular system is to maintain blood flow to every part of the body. It contains blood and vessels. The first vessel is arteries, and its function is to take blood to the body. The second blood vessel is capillaries. Capillaries transport blood to the heart, the heart then pumps blood around the body. The four chambers of the heart are what make it possible for the heart to pump blood around the body. The four chambers of the heart are the right atrium, left atrium, the right ventricle and left ventricle. During exercise, the body needs more oxygen to produce energy, this where the lungs begin to ventilate quicker than usual, oxygen is pumped around the body when it diffuses into the blood. When blood is moving around the body into the heart, the blood first enters the right atrium; here the blood is carried to the right ventricle. The right ventricle transports blood up to the lungs to increase oxygen level. This stage is known as the pulmonary circulation...

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