The Heart and Circulation

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Across
  1. 3. Type of tissue that the heart is made from (6)
  2. 7. The arteries that carry blood to the heart (8)
  3. 11. Carries blood to right atrium of heart (4,4)
  4. 12. This word means containing high levels of oxygen (10)
  5. 13. Involved in the clotting of blood (9)
  6. 14. What controls the heart beat (9)
  7. 17. Carries blood to heart (4)
  8. 18. The empty space inside blood vessels (5)
  9. 19. What is the product of heart rate multiplied by stroke volume (7,6)
Down
  1. 1. Prevent the backflow of blood (6)
  2. 2. Small blood vessels only one cell thick (9)
  3. 4. Which acid causes cramp during anaerobic respiration? (6)
  4. 5. Carries blood to body from the heart (5)
  5. 6. What does the heart do to the blood? (8)
  6. 8. The red chemical found in red blood cells (11)
  7. 9. Which colour blood cells are involved in immune response (5)
  8. 10. Which side of the heart has the most muscle (4)
  9. 13. The liquid part of the blood (6)
  10. 15. Carries blood away from the heart (6)
  11. 16. The chemical reaction that happens inside mitochondria (11)