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