Across
- 3. the membrane sack that the lungs sit inside
- 6. releases energy for life processes
- 8. part of the respiratory system
- 9. two of these found below the trachea and above the bronchioles
- 10. this is needed for the chemical reaction called respiration
Down
- 1. the process of inhaling and exhaling
- 2. contains plasma, red blood cells and white blood cells
- 4. air sacks in the lungs
- 5. the bottom part of your body
- 7. the top part of your body