Across
- 1. most abundant blood cell
- 4. middle layer, muscle of heart
- 8. upper chambers of heart
- 10. thin-walled vessels with valves inside
- 12. membrane surrounding the heart
- 15. vessels that carry blood AWAY from heart
- 17. artery listened to while taking blood pressure
- 20. vessels bringing blood back to heart from lungs
- 21. the universal recipient
- 23. protein that carries oxygen in RBCs
- 24. makes up the majority of blood
- 25. instrument used to take blood pressure
Down
- 2. function is to clot blood
- 3. another word for heart attack
- 5. largest artery of the body
- 6. valve found between right atrium and right ventricle
- 7. large vein carrying blood to right atrium
- 9. valve found between left atrium and left ventricle
- 11. known as pacemaker of the heart
- 13. makes up the majority plasma
- 14. top number of blood pressure reading
- 16. most abundant leukocyte
- 18. high blood pressure
- 19. describes type O blood (can give to anybody)
- 22. largest leukocyte