Across
- 3. Produces sounds when air passes through vocal cords.
- 5. Windpipe.
- 6. Airway branching off the windpipe.
- 7. Part of the skeleton that protects the lungs + heart.
- 8. Large sheet of muscle that moves up and down.
Down
- 1. Flap that covers airways when breathing.
- 2. Attached to ribs and move when breathing.
- 4. Tiny air sacs responsible for gas exchange. (Plural)