During a period of exercise the oxygen demand increased. It was necessary for the blood to deliver 10 cm3 of oxygen per minute per 100 g of respiring skeletal muscle.
Oxygenated blood carries 20 cm3 of oxygen per 100 cm3.
80% of the CO is directed at skeletal muscles when exercising heavily.
Skeletal muscle accounts for 50% of lean body mass.
a Calculate the volume of blood required to deliver sufficient oxygen to the muscles of a person weighing 108 kg during the exercise.
b What is the required cardiac output to supply oxygen at this rate?
c If the person had a heart rate of 193 bpm during the exercise, what would
their stroke volume have been?
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A level Biology question help watch
- Thread Starter
- 27-02-2018 10:51
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- 01-03-2018 12:16
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