Across
- 4. smallest blood vessel
- 7. largest artery in the body
- 8. lower chamber of the heart
- 10. small artery
- 12. recording of electrical activity of the heart
- 13. air that you breath
- 14. upper chamber of the heart
- 15. small vein
- 16. blood into heart from the upper parts of the body
Down
- 1. valve that lies between the right atrium and the right ventricle
- 2. carries blood to the lungs from the heart
- 3. valve that lies between the left atrium and the left ventricle
- 5. abnormal swishing sound
- 6. blood from lower half of body to the heart
- 9. carries blood from the lungs to the heart
- 11. inner lining of the heart