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Cardiac Efficiency Essay

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Cardiac efficiency The idea of efficiency was developed in early 19th century with the development of steam engines. The total energy output of the system used to be less than the amount of energy input. The majority of the energy was used up in the form of friction and heat. With the advent of science the efficiency of the machines improvised but still it’s not possible for the machine to give 100% efficiency. Resembling very closely with the mechanical engines, our heart also uses highly concentrated energy from food sources. To improve the efficiency of a machine, the energy must be readily available and the fuel source must be highly compact with a very high calorific value. Our body has also devised such an efficient system through the …show more content…

Larger the ventricles, more is the internal work done to pump out blood by the muscle cells and more is the oxygen consumption. This leads to decrease in the mechanical efficiency of the heart. In various pathophysiological cases like Congestive Heart Failure, ventricular myopathies, ventricular hypertrophies etc. the efficiency of the heart decreases. And the progression of the disease is associated with the efficiency. So in a case of machine we do servicing regularly to maintain an optimum output and keep it cost effective. In the same way, to maintain our heart in optimal working condition we must exercise regularly and give our body healthy …show more content…

It is very important that we must try to fully understand the components taking part in entropy generation. The most important factor is friction. The major chunk of internal work is done to overcome friction. The friction lies at the microscopic and macroscopic level. Microscopically the various molecules are rough in a three dimensional space. They combine together to form the various cardiac muscle fibers and the environment surrounding the blood flow inside the muscle. When the heart is pumping, it is doing work against the pressure, the friction between the various components like the muscle fibes, the blood cells, striking of the blood against the blood vessels, closure of valves etc leads to generation of heat and increase

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Firstly, the formation of the valve must be correct, and it must be flexible enough to undergo the movements required of the it to ensure efficient function. Secondly, the valve must be able to open up to a certain diameter to allow the correct volume of blood to pass through into the left ventricle. Finally, the valve must be able to close firmly, in order to prevent any blood leaking back into the left atrium7. The competence of the mitral valve is essential to the efficient functioning of the cardiovascular system, and when one of the above criteria for an efficiently functioning valve is not met there are several conditions that can develop, which can and do cause many problems for those who suffer from them. The most common problems include mitral valve regurgitation, mitral valve stenosis and mitral valve

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Because of this the blood goes in through three different streams and then later meets up, which causes stress for the heart. A lot of stress on an already weak heart can cause major damage and possibly kill the patient. The heart can only withstand a certain amount of velocity of blood or else it will deteriorate the tissue causing the heart to start losing its function. The tissue of the left ventricle is very thick which allows it to take the pressure of the blood and to push blood to the rest of the body, but the right ventricle is not made to withstand high pressure or high velocity, meaning that problems would

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