Across
- 6. the process by which air is moved in and out of the lungs
- 8. the process by which the body takes oxygen and removes carbon dioxide
- 9. is air movement from the lungs to the atmosphere breathing out
- 11. any of the major air passages to the lungs
- 13. is a hollow tube strengthened and kept open by rings of cartilage
Down
- 1. is air movement from the atmosphere into the lungs breathing in
- 2. the opening cavity in the lower part of the human face
- 3. the gas your body exhales out of the lungs
- 4. two bag like organs situated on each side of the heart
- 5. serves as a common passage for air to the trachea or food to the oesophagus
- 7. the part projecting above the mouth containing nostrils for breathing and smelling
- 10. the air in which you breathe in your body
- 12. the hollow organ forming an air passage to the lungs