Across
- 2. / is the throat
- 5. node / is small particles to lymph nodes
- 6. / are two tubes through which air moves to the lungs
- 8. system / provides body cells with oxygen and removes carbon dioxide that cells produce as waste
- 11. / are hair like structures that remove dipstick and other particles from the air
- 12. / are microscope air sacs
- 13. / is a flap that covers thee entrance to the trachea when a person swallows their food or beverages
- 15. / is a thick secretion that moistens, lubricates, and protects mucus membranes
Down
- 1. / are the main organs of the respiratory system
- 3. / is a special protein that helps fight infection
- 4. / is the body's resistance to disease causing agents
- 7. / are small tubes divided into the alveoli
- 9. / is an organ on the left side of the abdomen that filters foreign matter from the blood and Lymph
- 10. / is a tube through which air moves to the lungs
- 14. system / removes harmful organisms from the blood and combats pathogens