Across
- 4. Passage connecting your throat and lungs.
- 5. Tube that delivers air from your mouth and nose to the trachea.
- 6. Breathe in.
- 8. Small branches of the bronchial tubes that lead to the alveoli.
- 9. Moved into the bloodstream and carried through your body.
- 10. Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
Down
- 1. Hollow organ that allows you to talk and make sounds when air moves in and out.
- 2. System organ that helps you breathe.
- 3. Tissue flap at the entrance to the trachea that closes when you swallow to keep food and liquids out of your airway.
- 7. Tiny hairs that move in a-wave motion to filter dust and other irritants out of your airways.