2.) Low oxygen blood enters body, right atrium. Low oxygen blood leaves heart to lungs through right ventricle. High oxygen blood enters heart from lungs through left atrium. High oxygen blood to body through left ventricle.
3.) Q: Why do their heart rates increase when they are playing?
A: Because your body needs to pump more oxygen.
4.) Q: How does diet affect the cardiovascular system? What typed of foods should athletes eat to have a healthy heart?
A: If you don't eat right your heart will beat fast, for being low on energy. Types of food that athletes should eat are very healthy foods, foods that don't affect the heart in a bad way.
5.) Q: How does substance abuse affect the heart? Why is this bad for an athlete?
A: Thickens your muscle of the heart, some drugs stop the heart. This would be bad for an athlete because they need a good heart to be able to run and do other activities. =]
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