RESPIRATORY and CIRCULATORY SYSTEM

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Across
  1. 1. Protects the respiratory organs
  2. 3. Pumping organ of the body
  3. 7. also called bicuspid valve
  4. 9. carries blood towards the heart
  5. 10. Muscle of the heart
  6. 12. biggest artery
  7. 14. Prevents the backflow of the blood
  8. 15. channels the air towards the bronchi
Down
  1. 2. divides the heart into chambers
  2. 4. Receiving chamber
  3. 5. where gas change occurs
  4. 6. Pumping chamber
  5. 8. Circulation of blood between lungs and heart
  6. 11. carries blood away from the heart
  7. 13. Carries oxygen to be transported through out the body