Across
- 5. Prevent blood flowing back into the right atrium from the ventricle
- 7. An upper chamber receiving oxygenated blood from the lungs
- 8. Carries deoxygenated blood from the heart to the lungs
- 10. A lower chamber containing oxygenated blood
- 12. Oxygenated blood is pumped at high pressure from the heart to the body
Down
- 1. Prevent expelled blood flowing back into the heart
- 2. A lower chamber containing de-oxygenated
- 3. Returns oxygenated blood to the heart
- 4. The wall dividing the left and right sides of the heart
- 6. Prevent blood flowing back into the left atrium
- 9. Returns deoxygenated blood to the heart
- 11. An upper chamber receiving de-oxygenated blood