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Heart

QuestionAnswer
How is the heart different from the other muscles in your body? It never gets tired
What substance is in the blood that the heart pumps throughout your body? Oxygen
What is the main difference between your ventricles and your atria? Your atria bring blood into the heart; your ventricles pump it out
Place the following events in sequence: A) The atria fill with blood; B) The valve between the ventricles and atria close; C) Blood is pushed out of the heart The atria fill with blood; The valve between the ventricles and atria close; Blood is pushed out of the heart
Which body part is roughly the same size as your heart? fist
What happens after old blood, which has already circulated through the body, moves into the heart? The old blood travels to the lungs for more oxygen
What role does your brain play in the circulation of blood through your body? It signals the heart to beat
What word best describes the beating of the heart and the circulation of blood? Automatic
What can you infer from the fact that your heart beats faster when you exercise? When you exercise, your muscles need more oxygen
How long does it take for yo ur heart to pump blood through your entire body? About a minute
Created by: pearsallalex
 

 



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