Across
- 2. The area at the top of the trachea, which contains the larynx(voicebox).
- 4. What is made of muscle and elastic fibres with rings of cartilage?
- 7. What is carbon dioxide and water carried out from the blood in?
- 9. Below the epiglottis is the ___________.
- 10. The lungs surrounded by the ________.
Down
- 1. What closes off the trachea when we swallow?
- 3. The lungs are located in the _______.
- 5. An example of a breathing disorder caused by an allergic reaction to materials in the environment such as pollen, cigarette smoke, house dust and pet dander.
- 6. These tubes are lined with mucous-secreting cells and tiny hairs called _____.
- 8. The spongy structure where the exchange of gases takes place.