Across
- 1. layer of the heart.
- 5. lining of blood vessels.
- 7. of the heart.
- 10. lining of the heart.
- 11. carrying oxygen poor blood from the heart to the lungs.
- 12. type of the blood vessel.
- 13. of two upper chambers of the heart.
- 14. artery.
- 15. that is oxygen poor.
Down
- 2. between the right atrium and the right ventricle.
- 3. to measure blood pressure.
- 4. phase of the heartbeat.
- 6. like membrane surrounding the heart.
- 8. phase of the heart.
- 9. artery in the body.