Across
- 2. where oral cavity joins pharynx, passageway for food and air
- 8. Hollow canals separated by a septum of bone and cartilage
- 10. A lymphatic tissue that protects against inhaled pathogens
- 12. paired, cone-shaped organ that occupy the thoracic cavity; contains alveolus where gas exchange occurs
- 14. Lighten the skull, Act as resonance chambers for speech, Produce mucus that drains into the nasal cavity
- 15. prevents food from entering the trachea, or windpipe, during swallowing
Down
- 1. passageway of air to lungs
- 3. Brings about the exchange of oxygen and carbon dioxide between the blood, the air, and tissues
- 4. Connects nasal and oral cavities to the larynx
- 5. superior region, passageway for air
- 6. smallest branches of the bronchi; lead to the alveoli
- 7. Produces sound
- 9. surrounded by blood capillaries; exchange of gas
- 11. known as the windpipe, flexible tube that connects larynx to bronchi; directs air to bronchi
- 13. inferior region that opens to larynx