Across
- 3. Flaps that prevent the backflow of blood and keep the blood moving in one direction
- 4. Bluish discoloration of the skin
- 6. Color of oxygenated blood
- 12. Gas (waste) released by body cells
- 13. A nurse or other health worker trained in drawing blood for testing or donation.
- 14. vessel that carries blood from body tissues and lungs back to the heart
Down
- 1. Vessel that carries blood away from the heart
- 2. Fatty substance that builds up in the arteries
- 5. A medical instrument for listening to the action of someone's heart or breathing
- 7. Beat of the heart that you can feel
- 8. Smallest type of blood vessel
- 9. Color of de-oxygenated blood
- 10. Upper heart chamber
- 11. Largest artery in the body
- 14. Small vein