Across
- 5. These carry blood away from the heart
- 7. Composed of erythrocytes, leukocytes and platelets
- 10. What oxygen is attracted to within the hemoglobin
- 12. Make up 40-45% of blood volume
- 13. Contracts during inhalation to expand the chest cavity
- 15. Number of "sections" in the right lung
- 16. Breathing in
- 18. These are found in the veins and close when the blood passes through them
- 19. All things with lungs are descendants of what animal
- 21. Gives blood its red color
- 23. Circulation that moves the blood between the heart and the lungs
- 25. Where oxygen and CO2 diffusion occurs
- 26. Make up less than 1% of blood volume
- 28. Muscular tissue of the heart
- 29. These run through the lungs like tree branches
Down
- 1. Breathing out
- 2. Where the cardiac control system is found
- 3. Unit that pressure can be measured in
- 4. White blood cells
- 6. Number of hemes found in each hemoglobin
- 8. Protein that allows oxygen to bind to a red blood cell
- 9. What type of muscle composes the heart
- 11. What cardiac output is measured in
- 14. These carry blood to the heart
- 17. Moistens the air entering the body
- 19. Number of chambers in the heart
- 20. Word that means "stop bleeding"
- 22. Is that Aorta oxygenated or deoxygenated
- 24. The filtration of air is called:
- 27. Protects the trachea from invasion of food and fluids