Across
- 7. Cava The main vein that brings blood back to the heart
- 8. The circuit that carries blood to and from the lungs
- 10. The liquid portion of blood
- 12. Blood vessels that carry blood away from the heart
- 14. Upper chambers of the heart
- 15. The number of chambers in the heart
- 19. The phase when the heart contracts
- 20. The device used to measure blood pressure
- 23. Blood vessels that carry blood toward the heart
- 25. Positive Universal recipient blood type
- 26. A condition where cholesterol builds up in arteries
- 27. Tissue that makes up the heart muscle
- 28. Lower chambers of the heart
Down
- 1. Instrument used to listen to heart sounds
- 2. Infarction Another name for a heart attack
- 3. Smallest blood vessels in the body
- 4. The circuit that carries oxygenated blood to the body
- 5. The organ that pumps blood throughout the body
- 6. The condition of high blood pressure
- 9. The valve between the left atrium and left ventricle
- 11. The phase when the heart relaxes
- 13. The iron-rich protein in red blood cells
- 16. Cell fragments that help in blood clotting
- 17. The largest artery in the body
- 18. Smallest units of life found in blood
- 21. Process of reviving someone after cardiac arrest
- 22. The heartbeat sound is caused by closing of these
- 23. Type of blood vessel that has valves to prevent backflow
- 24. Node The node known as the heart's natural pacemaker