Across
- 3. to make something increase in size by filling it with air
- 5. a cartilaginous tube that connects the larynx to the bronchi of the lungs
- 6. curved bones forming a cage, protecting vital organs (heart, lungs)
Down
- 1. let the air out of something
- 2. a muscle that helps you inhale and exhale
- 4. the primary organs of respiration, a pair of spongy organs in your chest