Across
- 2. white blood cell
- 7. cardiac myocytes joined by ends
- 8. helps form blood clots
- 9. thick middle layer of heart
- 12. carries blood away from heart
- 15. prevents backflow of blood
- 16. empties into right atrium
- 17. respond to pressure changes
- 18. returns blood back to heart
Down
- 1. red blood cell
- 3. blood flow from right atrium to right ventricle
- 4. result of heart contraction
- 5. contract to fill ventricles
- 6. blood flow from ventricles to aorta and pulmonary trunk artery
- 10. inner layer of pericardium
- 11. fluid portion of blood
- 13. covers heart valves and tendons
- 14. blood flow from left atrium to left ventricle