Across
- 4. Elastic sacs with branching passages into which air is drawn
- 5. Where air enters your respiratory system
- 7. Contracts and flattens causing the chest cavity to enlarge. Creating a vacuum, pulling air into the lungs.
- 8. Tiny air sacs of the lungs which hold air.
- 9. The passage air uses to travel between the trachea and mouth, also known as the throat
Down
- 1. The small branches into which a bronchus divides
- 2. Transports the oxygen in you alveoli into your blood stream
- 3. The major air passages of the lungs which diverge from the windpipe
- 6. Passage between throat and lungs, also known as the windpipe.