Across
- 5. the width of capillaries is_______
- 7. carries blood to and from the body's cells
- 8. produced by white blood cells and can fight infection
- 10. carries blood back into the heart
- 11. formed in red bone marrow
- 12. biggest artery of the body
- 13. valves that prevent expelled blood to flow back into the heart
- 14. needed for blood clotting
- 15. where red blood cells are manufactured in
- 16. amount of blood pumped out of the left ventricle each beat
- 18. the number of times your heart beats per minute
- 19. wall separating the left and right sides of the heart
- 20. red coloured compound in red blood cells
- 21. amount of blood pumped out of the left ventricle each minute
Down
- 1. name for white blood cells
- 2. name for red blood cells
- 3. method used to increase red blood cell count to enhance athletic performance
- 4. blood pumped from the heart to the lungs through the pulmonary artery
- 6. blood returned to the heart through the pulmonary vein
- 9. calculated using 220 minutes your age
- 12. carries blood away from the heart
- 17. the result of Haemoglobin bonding with oxygen