Respiratory System
Across
- 3. passageway of air into either lung
- 4. organ where gas exchange occurs with the circulatory system
- 5. pushing air out of the body
- 7. gas that enters the body and blood stream and is taken to every cell in the body
- 8. tiny air sacs that are covered in capillaries
- 9. muscle that controls inhaling and exhaling
Down
- 1. small passageways of air that branch out all over lung
- 2. taking air into the body
- 6. passageway of air from nasal cavity into bronchi