Across
- 1. small artery
- 9. smallest type of blood vessel
- 10. hardening of arteries
- 11. small vein
- 12. relaxation phase of the heartbeat
- 14. condition of slow heartbeat
- 15. largest type of blood vessel
Down
- 2. inner lining of the heart
- 3. lower chamber of the heart
- 4. surgical repair of a valve
- 5. enlargement of the heart
- 6. contraction phase of the heartbeat
- 7. beat of the heart
- 8. upper chamber of the heart
- 13. the main artery in the body