Across
- 3. What pumps blood out?
- 4. The main function of the heart
- 5. Blood circulates inside closed transport systems
- 7. What receives blood? (entryway)
- 8. Defend body against infection and tumors
- 11. What transports 02 in blood?
- 15. What takes blood away from the heart?
- 17. Threads that form mesh that traps RBCs
- 18. Relaxation of ventricles
- 19. What node is called the pacemaker of the heart?
- 20. Artery walls thicken due to fatty deposits
Down
- 1. Wall between atria and ventricles
- 2. What returns blood back to the heart?
- 6. Contraction of ventricles
- 9. Clot in unbroken blood vessel
- 10. High blood pressure
- 12. What is the stoppage of bleeding called?
- 13. Artery walls thicken due to fatty deposits
- 14. Acute hypotension usually due to blood loss
- 16. What is the blood cell formation called?