NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When does blood circulate faster?
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When you eat
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When you exercise
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When you sleep
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When you rest
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Explanation:
Detailed explanation-1: -During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body.
Detailed explanation-2: -When the muscles start to work, they need more oxygen so the respiratory system responds by getting more oxygen into the lungs. The blood carries greater amounts of oxygen and the heart responds to pump more oxygenated blood around the body.
Detailed explanation-3: -After the initial rise (seconds) muscle blood flow decreases at a moderate rate and the time to reach resting flow levels varies from seconds to more than 30 min.
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