Across
- 3. External respiration is also known as '... gas exchange'
- 5. With chemical symbol 'C'
- 7. Network of blood vessels around alveoli
- 8. Protects larynx from food getting into it
- 10. Process of breathing in and out
- 11. Main left and right ...
- 13. Begining of the air passageway
- 14. Consists of nasopharynx and oropharynx
- 15. Anatomical space where air doesn't take part in gas exchange
- 16. Superior and inferior in left lung
- 17. Internal respiration is also known as '... gas exchange'
- 19. Volume of air breathed in during quiet breathing
Down
- 1. Dome-shaped muscle aiding breathing
- 2. Transports O2 in RBC
- 4. Process of passive transport in alveoli
- 5. Receptors detecting changes in CO2 and O2 in blood
- 6. Gas exchange takes place there
- 9. Contains voice box
- 12. With chemical symbol 'O'
- 18. Consists of 'C' shaped cartilage