Across
- 3. four chambers of the heart are separated by partitions
- 4. high blood pressure
- 7. largest artery in the body
- 9. small vein
- 10. two upper chambers
- 13. area of dead tissue
- 14. open
- 15. two lower chambers
- 16. beat of the heart as felt through the walls of arteries
- 17. extra heart sound, heard between normal beats
- 18. arteries that supply blood to the head and neck
Down
- 1. relaxation
- 2. rapid but irregular contractions
- 3. contraction
- 5. inner lining of the heart
- 6. pacemaker of the heart
- 8. small, pinpoint hemorrhages
- 11. local widening of an arterial wall
- 12. smallest blood vessel
- 15. cava largest vein in the body