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How does the physiology of the cardiovascular system relate to energy metabolism?
Wiki User
∙ 13y ago
The cardiovascular system has to provide oxygenated blood to the body at a rate sufficient to meet energy requirements. The main limiting factor is O2 delivery (closely followed by CO2 removal). Also, metabolic rate is very closely related to oxygen consumption - they are almost proportional, changing only with the respiratory quotient (which is in turn based on the type of fuel being used; e.g. carbohydrate, fat, protein). So, to a very reasonable approximation, oxygen consumption is proportional to metabolic rate. But in equilibrium, oxygen consumption must equal oxygen delivery by the cardiovascular system. As oxygen is usually carried at the same concentration in blood (close to 100% saturated), this means that the cardiac output is proportional to the oxygen delivered to the tissue per unit time, and hence to the metabolic rate.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoEnergy metabolism or the rate of energy production is directly proportional to cardiac output, which is the main function of the cardiovascular system. The more efficient the cardiac output, the faster the energy metabolism.
Wiki User
∙ 12y agoThe cardiovascular system has to provide oxygenated blood to the rest of the body at a constant speed and in order for this speed to maintain - enough energy has to be produced by the oxygen that is taken in for it to run.
Wiki User
∙ 12y agoYou need energy to pump the heart otherwise it would not work boom
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