Across
- 3. The lower chambers of the heart
- 4. A chemical that makes blood red by using oxygen
- 5. This is what you breathe
- 8. A wall that seperates the heart into two parts
- 10. A muscle that pumps blood
- 11. The system of the blood flow
Down
- 1. The upper chambers of the heart
- 2. Tbes from the heart leading into the lungs
- 6. The largest blood vessel in the body
- 7. The beat of your heart (you can find your ____in your wrist)
- 9. A pale gold fluid that makes up little more than half of our blood