Across
- 3. The tiny hairs that keep mucus and dirt out of your lungs
- 4. I _____so my diaphragm relax and doomed.
- 7. about 78% in air
- 9. When you _______ the volume of thorax increase
- 10. process in which energy is released from food
- 11. _________ is not good for your lungs.
- 13. The voice box is also known as the
Down
- 1. just below the voice box in front of the esophagus
- 2. Exchange of air occurs in _______ which are also known as 'air sacs'
- 5. leaf-like structure which prevents the entry of food into respiratory passages
- 6. Flattish, dome-shaped muscle that contract and relax to aid in inhaling and exhaling.
- 8. The trachea is also called the:
- 12. gas needed to help release energy from food