the percentage of oxygen absorbed from the air in the lungs is always about the same, so how can the oxygen supply to the blood be increased during vigorous activity
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Answered by
59
Thank you for asking this question.
During vigorous activity heart rate increases which stimulates the breathing rate. With an increase in the heart rate, blood pumps through muscles at a faster rate.
As oxygen is supplied via red blood cells so this increased rate of blood flow leaves less time for oxygen uptake and fast blood flow increases the oxygen supply in vigorous activity.
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Answered by
13
Oxygen is our body's energy fuel.
Oxygen and glucose together are our body's energy reserves which helps our body carry out these activities such as pump blood to our heart, helping lungs inhale and exhale and allowing every organ and cell to function.
When we perform a vigorous activity such as exercise or lifting weights our body requires even more energy.
When we're exercising our muscles make adjustments to supply extra energy to our body by producing more of the chemical energy molecule ATP and to produce ATP you need more oxygen.
Muscles are supplied with thrice the amount of oxygen when active as compared to when at rest.
Oxygen and glucose together are our body's energy reserves which helps our body carry out these activities such as pump blood to our heart, helping lungs inhale and exhale and allowing every organ and cell to function.
When we perform a vigorous activity such as exercise or lifting weights our body requires even more energy.
When we're exercising our muscles make adjustments to supply extra energy to our body by producing more of the chemical energy molecule ATP and to produce ATP you need more oxygen.
Muscles are supplied with thrice the amount of oxygen when active as compared to when at rest.
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