Across
- 3. hair like projections
- 4. microscopic air sacs in the lungs
- 5. voice box
- 7. leaf-shaped structure that closes over the larynx during swallowing
- 9. bone and cartilaginous partition separates the nasal cavity into two sections
- 11. windpipe
- 12. small brances of the bronchi
- 13. tube that extends from the pharynx to the stomach
- 14. Rhythmic; wavelike motion of involuntary muscles
Down
- 1. small sac near the liver;concentrates and stores bile
- 2. process of breathing
- 6. a serous membrane that covers the lungs and lines the thoracic cavity
- 8. breathing in
- 10. a constant state of natural balance within the body