Across
- 1. body not receiving enough oxygen
- 3. blockage of a blood vessel by a blood clot
- 5. chest pain
- 8. medication that relaxes the walls of the coronary arteries
- 9. vessel that carries blood away from the heart
- 10. vessels that carry blood to the heart
- 12. phase when the heart muscle relaxes
- 13. Contraction of the heart
Down
- 2. red blood cells are less than normal
- 4. lack of blood supply to an area
- 5. the two upper chambers of the heart
- 6. irregular heartbeat
- 7. the two lower chambers of the heart
- 11. four-chambered organ that pumps blood throughout the body