Across
- 3. these two things will keep the heart healthy, this and rest
- 8. the expanding of arteries after each heartbeat
- 10. help fight pathogens (germs)
- 13. the smallest blood vessels
- 14. gives red blood cells their color
- 16. this artery supplies blood to the lungs
- 18. a blood clot on your skin
- 19. our bodies need one full day of this each week
- 20. the blood travels through 60,000 what of pipeline in our bodies
Down
- 1. another name for the heart, ends with muscle
- 2. a lower chamber of the heart
- 4. the largest artery in the body
- 5. the pressure of blood against the arteries, ends with pressure
- 6. two large veins that enter the heart, ends with cava
- 7. the flow of blood throughout the body
- 8. the part of your blood that carries digested food; the liquid part of your blood
- 9. these blood cells fight off infection
- 10. an upper chamber of the heart
- 11. an enlarged, painful vein
- 12. carry blood to your heart
- 15. little doorlike flaps
- 16. help the clotting of the blood
- 17. the amount of quarts of blood a child has