Across
- 3. high blood pressure
- 8. only artery to carry deoxygenated blood
- 12. people with high blood pressure should reduce this in their diet
- 13. trachea is made out of rings of this to keep it open at all times
- 14. muscles demand more of this when exercising
- 15. largest artery
- 19. also known as the voicebox
- 20. the heart is made out of
- 21. prevent backflow of blood
- 22. clots blood
- 23. usually carry deoxygenated blood
- 25. fight infection
- 27. heart weighs about
Down
- 1. kind of blood that flows through veins
- 2. lower chambers of the heart
- 4. top number in a blood pressure reading
- 5. place where oxygen and carbon dioxide are exchange in the circulatory system
- 6. circulatory system is made up of the heart, blood vessels and
- 7. place where air is cleaned, moistened, and warmed before entering the lungs
- 9. upper chambers of the heart
- 10. blocked or broken blood vessel in the brain
- 11. part of the red blood cell that carries oxygen
- 16. place in the lungs where oxygen is exchanged for carbon dioxide
- 17. direction arteries carry blood from the heart
- 18. largest vein
- 24. heart is the size of your
- 26. prevents food from entering trachea
- 28. bottom number in blood pressure reading