The Heart

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Across
  1. 2. You should get 8–10 hours of this to help your heart rest
  2. 4. One way to reduce stress and help your heart
  3. 8. Tiny blood vessels where oxygen and nutrients move into the tissues
  4. 9. The strongest chamber of the heart
  5. 12. Gas that is a waste product your body gets rid of
  6. 16. The “natural pacemaker” of the heart
  7. 17. The bottom chamber of the heart that pumps blood
  8. 18. The top chamber of the heart that collects blood
  9. 19. This sound ("lub-dub") is made by heart ________ closing
  10. 20. This harmful habit damages your heart and lungs
Down
  1. 1. This organ works like a pump to move blood
  2. 3. The part of the heart that pumps blood to the whole body
  3. 5. Eating too much of this can harm your heart (common in junk food)
  4. 6. You can feel this on your wrist or neck—it shows your heartbeat
  5. 7. The part of the heart that sends blood to the lungs for oxygen
  6. 10. Special muscle type that makes up the heart
  7. 11. Gas that your body needs to make energy
  8. 13. This vessel carries blood away from the heart
  9. 14. What your heart pumps through the body
  10. 15. The system that includes the heart and blood vessels