Across
- 4. a hollow tube strengthened and kept open by rings of cartilage
- 5. another name for the throat
- 7. the red fluid that passes through the body to vital organs
- 10. what all people breath into their lungs
- 11. is a process that occurs in practically all living cells
- 13. two bag like organs situated one either side of the heart
Down
- 1. when the diaphragm contracts and flattens
- 2. the gas that you breath out once oxygen has passed through the body
- 3. located at the beginning of the trachea
- 6. when the diaphragm moves upwards and relaxes
- 8. the dome shaped muscle at the bottom of the lung
- 9. the process of which air is moved in and out of the lungs
- 12. the opening cavity situated on the lower part of the face