Across
- 2. Located in the throat between the nose and the voice box
- 3. Small air passages surrounded by blood vessel
- 5. Also known as the voice box
- 7. One of the primary organ involved in respiration.
Down
- 1. Small tube dividing into Alveoli
- 4. Gas inhaled by every human and is required for survival.
- 6. Entrance of air into your body and filters the air