Across
- 2. This pair of organs exchange oxygen for carbon dioxide
- 4. These blood vessels distribute oxygenated blood to the body
- 6. This muscle contracts and retracts in order to pull air in and out of the lungs
- 8. This system transports blood to all parts of the body
- 10. Airway that leads from the larynx to the lungs
Down
- 1. This system is responsible for breathing
- 3. The largest blood vessel in the body
- 5. Small blood vessels of hair-like thinness that form a branching network between arteries and veins
- 7. This organ pumps blood to through blood vessels
- 9. These blood vessels collect oxygen poor blood and return it to your heart