Across
- 4. a long, U-shaped tube that connects your larynx (voice box) to your lungs
- 6. a dome-shaped, muscular partition that separates the thoracic cavity (chest) from the abdominal cavity (stomach and intestines)
- 7. the process of breathing, which involves the exchange of gases between the body and the environment
- 8. a colorless, odorless, and tasteless chemical element that makes up about 21% of Earth's atmosphere and is vital for the survival of most living organisms through cellular respiration.
Down
- 1. act of breathing in, where air or other substances enter the lungs through the nose or mouth
- 2. the physiological process of breathing air out of the lungs
- 3. Dioxide a naturally occurring, colorless, odorless gas composed of one carbon atom and two oxygen atoms, found in the atmosphere
- 5. a chronic lung condition that causes inflammation and narrowing of the airways