Did you know that an adult human heart beats over 100,000 ...

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Did you know that an adult human heart beats over 100,000 times a day? How many times would it beat in a year?

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Ask A Biologist coloring page | Web address: askabiologist.asu.edu/activities/coloring

Human Heart

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The average time it takes a single red blood cell to leave and return to the heart is 30 seconds.

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Heart Anatomy Key: 1. Aort 2. Anterior Vena Cava 3. Posterior Vena Cava

4. Right Atrium 5. Left Atrium 6. Pulmanary Artery

7. Pulmonary Vein 8. Right Ventricle 9. Left Ventricle

10. Antrioventricular Valve 11. Septum 12. Semilunar Valve

Ask A Biologist coloring page | Web address: askabiologist.asu.edu/activities/coloring

Human Heart - Key

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