Across
- 4. records the electrical activity of the heart.
- 6. a build-up of plaque inside arteries.
- 8. the valve between left atrium and ventricle.
- 10. inner-most lining of blood vessels.
- 12. the middle, thickest layer of the wall of the heart.
- 14. the valve between the right and left ventricles?
Down
- 1. a slow heartbeat condition.
- 2. the septum that separates the upper two chambers.
- 3. an inflamed vein.
- 5. the largest artery.
- 7. a record of vessel.
- 9. what is a small vein called?
- 11. blue tinted skin caused by diminished O2 in blood.
- 13. relating to the heart and blood vessels.
- 15. which vein carries oxygenated blood from lungs to heart?