Across
- 4. has highest pressure
- 6. transports blood from the upper body to the heart
- 8. transports blood from heart to lungs
- 9. ensures the blood does not flow backward
- 11. collects blood coming from the lungs
Down
- 1. largest vein in humans
- 2. transports blood from lungs to heart
- 3. largest artery in humans
- 5. collects the blood coming from the vena cava
- 7. collects blood which comes from the vena cava
- 10. diving wall in the heart