Across
- 1. veins that bring oxygenated blood to heart
- 4. slow beating of the heart
- 7. measures peripheral oxygen saturation in the blood
- 10. largest artery in the body
- 14. smallest blood vessels in the body
Down
- 2. muscle of the heart
- 3. weakening or bulge of the wall of a blood vessel
- 5. largest part of the heart
- 6. valve connecting left atrium and left ventricle
- 8. Largest vein in the body
- 9. fast beating of the heart
- 11. valve that connects right atrium and right ventricle
- 12. phase where heart muscles are contracted
- 13. composed of pacemaker cells
- 15. the loss of heart rhythm