Across
- 4. smallest blood vessel
- 7. located between the left atrium and left ventricle
- 9. inner lining of the heart
- 10. record of a vessel
- 12. largest artery
- 14. narrowing of a blood vessel
- 15. bluish discoloration
Down
- 1. hardening of the arteries
- 2. lower chamber of the heart
- 3. rapid but regular contractions
- 5. incision of a vein
- 6. largest vein in the body
- 8. upper chamber of the heart
- 11. enlargement of the heart
- 13. inflammation of the inner lining of the heart