Respiratory System

3. the airway in your throat.
4. smaller tubes that split off from the bronchi and deliver air to the alveoli
6. lobes parts of the lungs that perform functions to assist with respiration.
7. surround the alveoli and take the oxygen into the bloodstream for use by the body.
9. keep the temperature and humidity of the air the same. Also produces mucus.
13. breathing in
14. a passageway for air down to the bronchi. Also called the windpipe.
15. An entryway into the respiratory system. Lined with hairs and mucus.

1. An entryway to the respiratory system. Is not lined with hairs or mucus.
2. large tubes that split off from the windpipe and into both lungs.
5. protects the lower airways and creates sound.
6. two structures that hold alveoli and allow the function of the respiratory system.
8. small elastic sacs that fill up with air and allow oxygen to be transported into the bloodstream.
10. breathing out
11. contracts and expands to assist with respiring.
12. protects the respiratory system from harm