Across
- 2. tube that connects the pharynx to the lungs
- 6. respiration exchange of gases between the atmosphere and the blood
- 7. small tube that branches from the bronchi within the lungs
- 9. flap of tissues that covers the trachea
- 11. one of the two branches of the trachea that enters the lungs
Down
- 1. cavity where air enters the body through the nostrils or mouth
- 3. tiny air sacs in the lungs
- 4. process in which air is forced out of the lungs
- 5. respiration change of gases between the blood and the body cells
- 8. hair-like processes that provide upward movement of mucus cell secretions
- 10. throat; passageway for air to the larynx