Across
- 4. carries blood from the upper body into the heart
- 6. middle layer of the heart wall
- 7. carries blood from the lower body into the heart
- 11. pumps oxygenated blood to the body
- 12. a double serous membrane
- 13. inner layer of the heart wall
- 15. carries oxygenated blood from the lungs to the left atrium
Down
- 1. gets blood from the lungs and pumps it to the left ventricle
- 2. pumps oxygen poor blood into the lungs for oxygenation
- 3. carries deoxygenated blood from right ventricle to the lungs
- 5. the largest artery in the heart
- 8. the two upper chambers of the heart
- 9. outside layer of the heart wall
- 10. the two lower chambers of the heart
- 14. receives blood from the body and pumps it to the right ventricle