Respiratory System

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