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The Circulatory System

Across
Carries oxygen-rich blood away from the heart
A type of waste that is removed from the blood
Carries oxygen-poor blood to the heart
Heart rate is measured in beats per...
Down
Chambers that cause blood to flow
Your blood vessels could reach around the ...2.5 times
Fuel for your muscles
The upper chamber which blood enters the heart
As you exercise, your heart rate will...
Organs that swap oxygen and carbon dioxide