Across
- 2. Takes blood towards the heart
- 4. Flaps that prevent backward flow of blood.
- 5. Take blood away from the heart
- 6. An involuntary muscle found in the heart
- 7. The largest artery
- 8. A medical device that helps people heart beat faster
- 9. The 2 upper chamberers of the heart.
- 10. Flaps that enables blood to flow through the heart.
Down
- 1. The 2 lower chambers of the heart.
- 3. The largest vein.
- 6. Smallest type of blood vessel.