Across
- 3. - Sheet of muscle that helps with breathing.
- 7. - Tiny blood vessels where gas exchange occurs.
- 10. - Molecules that diffuses into the lungs as a waste product.
- 11. - Also known as the throat.
- 12. - Inflates and deflates as we breath.
- 13. - Process that brings air into the lungs.
- 14. - Tiny air sacs in the lungs where gas exchange occurs.
Down
- 1. - Process that removes air from the lungs.
- 2. - Tiny passageways for are in the lungs that lead to alveoli.
- 4. - Moistens, warms, and filters air.
- 5. - Passageways that leads air into each lung.
- 6. - Passageway that carries air to the body; also called the windpipe.
- 8. - Structure that allows use to speak; also known as the voice box.
- 9. - Molecule that diffuses into the blood vessels.