Across
- 2. the largest vein in the body
- 4. largest type of blood vessel, carries blood away from the heart to all parts of the body
- 5. one of two lower chambers of the heart
- 6. double-layer membrane that surrounds the heart
- 10. innermost lining of the blood vessels
- 12. smallest type of blood vessel
- 14. beat of the heart as felt through the arteries
Down
- 1. inner lining of the heart
- 3. relaxation phase of the heartbeat
- 7. largest artery in the body
- 8. muscular middle layer of the heart
- 9. small vein
- 11. contraction part of the heart beat
- 13. small artery