Across
- 1. - condition of deficient oxygen
- 4. - large vessels that carry blood away from the heart.
- 5. - largest artery in the body
- 7. - upper chamber of the heart
- 9. -innermost layer of epithelial cells
- 10. - inflammation of a vein
- 12. - smallest blood vessel
- 13. - gas that enters the blood through the lungs,travel to heart
- 14. - hardening of arteries.
Down
- 2. - beat of the heart
- 3. - extreme form of hypoxia
- 6. - smaller branches of arteries
- 7. - surgical repair of blood vessels
- 8. - one of two lower chambers of the heart.
- 11. - incision of a heart valve