Across
- 4. passageway to the lungs
- 5. it switches the carbon dioxide for blood
- 7. upper part of the heart
- 8. inflates lungs
- 9. move gasses through the air and blood
- 10. causes scabs
- 11. pumps blood through the body
- 14. fights diseases
Down
- 1. hair-like structure
- 2. liquid that just surrounds thing in the body
- 3. lower chamber of the heart
- 4. connects the alveoli and the bronchi
- 6. absorbs nutrients
- 12. transport nutrients to the heart
- 13. mechanical and chemical digestion