Across
- 1. first chamber of the heart
- 3. forth and last chamber of the heart
- 4. brings air in to oxygenate the blood
- 8. take oxygenated blood away from heart
- 9. Where deoxygenated blood leaves from
- 10. 3 section 1 way valve
- 12. third chamber of the heart
Down
- 2. valve between the antrum and ventricle
- 5. second chamber of the heart
- 6. stop blood from flowing backwards
- 7. The type of circuit that blood runs through
- 11. Carries blood back to heart