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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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livestrong136 livestrong136
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10 years ago
1. how is the cardiac output maintained during exercise assuming that the ESV remains the same?(the preload increases EDV)

2.What happens to cardiac output when stroke volume and heart rate both increase? What happens to blood pressure when stroke volume and heart rate both increase? How would this change in blood pressure be corrected
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10 years ago
During the initial stages of exercise, increased cardiac output is due to an increase in both heart rate and stroke volume. When the level of exercise exceeds 40% to 60% of the individual's capacity, stroke volume has either plateaued or begun to increase at a much slower rate. Thus further increases in cardiac output are largely the result of increases in heart rate.
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