Across
- 1. Air sacs where gas exchange occurs
- 6. Organ responsible for oxygenating blood
- 8. Process of moving air into and out of the lungs
- 9. Hair-like structures that move mucus out of the respiratory tract
- 10. Tube supported by C-shaped cartilage rings
Down
- 2. Cartilaginous flap that prevents food entering the airway
- 3. Voice box
- 4. Serous membrane surrounding the lungs
- 5. Smallest conducting airways before the alveoli
- 7. Primary muscle of inhalation