The Heart

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Across
  1. 5. Blood Cells – Cells that help fight infections.
  2. 6. – The liquid component of blood.
  3. 8. Blood Cells – Cells that carry oxygen throughout the body.
  4. 9. – Refers to the circulation of blood throughout the body.
  5. 11. – The gas that blood delivers to body tissues.
  6. 12. – Tiny blood vessels where gas exchange occurs.
  7. 14. – Refers to the circulation of blood through the lungs.
  8. 16. – The muscular organ that pumps blood throughout the body.
  9. 17. – Small cell fragments that help in blood clotting.
  10. 19. – Refers to the arteries that supply blood to the heart muscle.
Down
  1. 1. – Upper chamber of the heart where blood enters.
  2. 2. – Lower chamber of the heart that pumps blood out.
  3. 3. – Structures that prevent backflow of blood in the heart and veins.
  4. 4. Dioxide – The waste gas that blood removes from body tissues.
  5. 7. – Blood vessels that carry blood back to the heart.
  6. 10. – The movement of blood throughout the body.
  7. 13. – The largest artery in the body.
  8. 15. – Blood vessels that carry blood away from the heart.
  9. 16. – Protein in red blood cells that binds to oxygen.
  10. 18. Pressure – The force exerted by blood on the walls of arteries.