Respiratory System
Across
- 3. two large passageways in the chest cavity
- 4. millions of tiny air sacs connected to the bronchi
- 5. the diaphragm goes ________ when you exhale
- 7. aka the windpipe
Down
- 1. serves as a passageway for both air and food
- 2. a large, flat muscle at the bottom of the chest cavity
- 6. contains two highly elastic folds of tissue known as vocal chords