What changes occur after doing regular exercise for several months. The resting heart rate decreases but cardiac output is remains unchanged. Introduction: Heart is muscular tissue made up of cardiac muscle. It helps in transportation of oxygen in body through blood and also carries deoxygenated blood from the body and transports it to the lungs. This involves the contraction and relaxation of heart. When heart contracts it pumps oxygenated blood into the body and when it is relaxed its chamber is filled with blood. This process is called cardiac cycle. In this, contraction phase is called systole and relaxation phase is called diastole.

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Chapter 34.2, Problem 3CC

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What changes occur after doing regular exercise for several months. The resting heart rate decreases but cardiac output is remains unchanged.

Introduction:

Heart is muscular tissue made up of cardiac muscle. It helps in transportation of oxygen in body through blood and also carries deoxygenated blood from the body and transports it to the lungs. This involves the contraction and relaxation of heart. When heart contracts it pumps oxygenated blood into the body and when it is relaxed its chamber is filled with blood. This process is called cardiac cycle. In this, contraction phase is called systole and relaxation phase is called diastole.

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