Across
- 5. Blood poor in oxygen
- 7. Fourth chamber
- 8. Sends the poor in oxygen blood to the heart
- 9. Sends the oxygenated blood to the body
- 10. Source
Down
- 1. 2nd chamber
- 2. Where arteries and veins meet
- 3. Third chamber
- 4. First chamber
- 6. Blood rich in oxygen
- 7. Where oxygen is