Across
- 3. Organ where gas exchange occurs.
- 5. Tube that carries air to the lungs.
- 7. Tiny passageways in the lungs where air flows into the alveoli.
- 10. Part of the respiratory tract that aids in the removal of foreign particles.
- 14. Main muscle for breathing in the body.
- 15. Part of the respiratory system that is part of the upper airway.
- 16. Area that helps regulate blood flow, important for circulation.
- 17. Central compartment of the chest cavity.
- 18. Passage that conducts air toward the lungs and helps warm it.
Down
- 1. below the lungs and aids in respiration.
- 2. Muscle that separates the thoracic and abdominal cavities.
- 4. Part of the system that is located between the oral and nasal cavities.
- 6. Region of the body that houses organs involved in respiration.
- 8. Smaller tubes that distribute air to the lungs.
- 9. Helps connect the upper and lower parts of the airway.
- 11. that lead to the left and right lungs.
- 12. Tiny air sacs where oxygen and carbon dioxide exchange.
- 13. Space that contains the lungs and the heart.