Did you know that an adult human heart beats over 100,000 times a day? How many times would it beat in a year? 1 6 7 2 12 5 4 10 11 9 8 3 Color and label parts: 1 ________________ 2 ________________ 3 ________________ 4 ________________ 5 ________________ 6 ________________ 7 ________________ 8 ________________ 9 ________________ Ask A Biologist coloring page | Web address: askabiologist.asu.edu/activities/coloring 10 _______________ 11 _______________ 12 _______________ Human Heart The average time it takes a single red blood cell to leave and return to the heart is 30 seconds. 1 6 7 2 12 5 4 10 11 9 8 3 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