Cardiovascular system

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Across
  1. 2. Bottom chambers of the heart
  2. 3. Blood with no oxygen
  3. 5. Flaps/doors that prevent blood flowing flowing backwards
  4. 9. Carry Blood AWAY from the heart
  5. 11. 60-100 Bpm
  6. 13. The top chambers of the heart
  7. 14. Place where deoxygenated blood enters from the LOWER body
  8. 15. blood WITH oxygen
Down
  1. 1. Exercises that use oxygen
  2. 4. The amount of blood pumped in 1 minute
  3. 6. Place where deoxygenated blood enters from the UPPER body
  4. 7. The amount of blood pumped in ONE Stroke
  5. 8. Carry blood TO the heart
  6. 10. exercises that DO NOT use oxygen
  7. 12. 220-your age
  8. 13. Sends blood from the heart to the rest of the body