The Respiratory System
Across
- 2. they are an important part of the body that helps us breathe
- 3. tiny hair like structures on the surface of the cell
- 6. it is one of the main parts of the respiratory system
- 8. any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange.
- 9. a bronchus or a primary branch off of one.
- 10. a large membranous tube reinforced by rings of cartilage
Down
- 1. the system of breathing(hint;the title's name)
- 4. produce new skin cells.
- 5. specialized for the synthesis and secretion of mucus
- 7. the main purpose of the Respiratory System