Across
- 2. beat of the heart as felt through the walls of the arteries
- 5. vessel that carries blood away from the heart
- 8. a small artery
- 9. valve located between the right atrium and the right ventricle
- 12. largest vein in the body
- 13. upper chambers of the heart
Down
- 1. innermost lining of blood vessels
- 3. inner lining of the heart
- 4. lower chambers of the heart
- 6. middle layer of the heart
- 7. small vein
- 8. The largest artery in the body
- 10. relaxation phase of the heartbeat
- 11. smallest type of blood vessel
- 12. vessel that carries blood back to the heart