Heart and Circulation

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Across
  1. 2. Protein in red blood cells that contains iron and carries oxygen
  2. 4. The rhythmic beat felt in arteries
  3. 6. Large vein bringing deoxygenated blood back to the heart from the body
  4. 10. Blood cells that defend the body against infection (WBC)
  5. 12. Carries oxygenated blood from lungs to heart
  6. 14. Largest artery in the body taking oxygenated blood to the body.
  7. 15. Yellow liquid part of the blood
  8. 17. The mammal type of circulatory system where blood travels through the heart twice per full circuit. (DCS)
  9. 19. cells carrying oxygen using haemoglobin (RBC)
  10. 22. Blood vessel that carries blood away from the heart
  11. 23. Prevents backflow of blood in veins and the heart.
  12. 24. Carries deoxygenated blood from heart to lungs
  13. 25. Tiny blood vessel where exchange of substances occurs
Down
  1. 1. Blood pressure during heart relaxation (DP)
  2. 3. Parts of cells that help the blood to clot
  3. 5. Device used to measure blood pressure – difficult to say.
  4. 7. Instrument used to listen to heartbeats
  5. 8. Blood vessel that carries blood back to the heart
  6. 9. Lower chamber of the heart that pumps blood
  7. 11. Structures that prevent the backflow of blood
  8. 13. Upper chamber of the heart that receives blood
  9. 16. The name for the force of blood pushing against artery walls – can be low or high.
  10. 18. Blood pressure during heart contraction (SP)
  11. 20. The hollow space inside a blood vessel
  12. 21. Wall that separates the left and right sides of the heart (S)