HOPE 02.02 Monitoring Activity
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How is blood flow related to lung function during exercise?
Blood vessels are dilated to increase the amount of oxygen carried in the blood, and the lungs work harder to meet the body's oxygen demands.
Even though Alexandra could talk with her friends during dance class, she couldn't sing along to the songs. Which best describes her heart rate during this activity?
Moderate
Which of these methods would be most effective in allowing someone to precisely gauge the intensity level of his exercise?
Take his pulse
During exercise, the amount of ____________ carried in the blood to the muscles increases.
oxygen
During exercise, your body releases heat by
dilating blood vessels