Across
- 2. This matter is exchanged between air and blood
- 5. Part of the lungs where gas exchange takes place
- 7. Also known as the voice box
- 8. The flap of cartilage that stops food getting into the lungs
- 9. Proper name for the windpipe
Down
- 1. A tube of cartilage that carries air to the lungs
- 3. Also known as the throat
- 4. The sheet of muscle that separates the thoracic and abdominal cavities
- 6. Important structure in both the respiratory and the nervous system