Across
- 3. aid in clotting with the help of plasma protein
- 5. carry oxygen via hemoglobin
- 10. site of gas exchange
- 11. contain oxygen rich blood from the heart
- 13. carrying protein in RBCs
- 15. chambers of the heart that receive blood
- 17. chambers of the heart that pump blood
- 18. muscle aiding in breathing
Down
- 1. guard against infection
- 2. straw-colored main component of blood
- 4. air is filtered and warmed
- 5. to supply cells with oxygen and carbon dioxide
- 6. contains the bronchi, bronchioles, and alveoli
- 7. exchange materials between the cell and blood
- 8. transportation system for materials
- 9. passageway to the bronchi
- 12. number of chambers in the heart
- 14. vocal cords
- 16. contain oxygen poor blood from the body to the heart