Across
- 3. Outer Membrane enclosing the heart
- 5. Another name for a Red Blood Cell
- 6. Site for gas exchange
- 9. Artery carrying blood from the heart to the lungs for oxygenation
- 11. Each of the two lower open areas of the heart
- 13. Largest artery in the body
- 14. Lining of chambers and valves of the heart
Down
- 1. Carries oxygen rich blood to the heart
- 2. Another name for a White Blood Cell
- 4. A large heart vein that carries blood to the heart from other areas of the body
- 7. Blood vessels that carry oxygen rich blood from your lungs to your heart
- 8. The upper open areas of the heart from which blood is passed to the ventricles
- 10. Middle wall enclosing heart
- 12. Carries oxygen poor blood to the heart