Across
- 2. carries oxygen in the blood
- 4. the chambers that are found on top of the heart
- 5. color of blood that does not have oxygen
- 7. the doors to leading to chambers of the heart
- 10. fight infection and disease
- 13. the chambers that are found at the bottom
- 14. color of blood that has oxygen
- 15. help form blood clots
Down
- 1. the largest artery in the human body
- 3. there are 4 of these in the heart
- 6. the gas that humans breathe in
- 8. take blood to the heart
- 9. side of the heart that is colored blue
- 11. place where blood receives oxygen
- 12. take blood away from the heart