Across
- 3. A large airway that leads from the trachea (windpipe) to a lung
- 4. a muscle that separates the chest from the abdomen and helps with breathing
- 7. A tiny branch of air tubes in the lungs
- 8. he space inside the nose, divided into two nasal passages by the nasal septum, and forms the uppermost part of the respiratory system
Down
- 1. a tube that carries air from the voice box to the lungs
- 2. system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide
- 5. A tube through which the blood circulates in the body
- 6. body's way keeping everything in balanced