Across
- 5. little sacks on the end of bronchioles
- 6. branches of the throat to the lungs
- 7. obtains oxygen and removes carbon dioxide
- 8. cartilage rings and provides airflow to the lungs
- 10. blood vessles that carry blood away from the heart
Down
- 1. throat
- 2. bring blood back to the heart
- 3. smallest blood vessles
- 4. manipulates pitch and volume
- 9. hollow and muscular organ that pumps blood