Across
- 3. Smaller pathways that branch off of the bronchi
- 6. What leads to the stomach
- 9. Filters your blood
- 10. Small little filters in your kidneys
- 12. Basic unit of life
- 13. windpipe
- 14. Starts mechanical digestion
- 15. Sac that expands with oxygen
Down
- 1. Where urine is stored
- 2. Where the esophagus leads
- 4. system that gets oxygen into your body
- 5. Takes blood to your heart
- 7. Tiny sacs in the lungs where oxygen is absorbed into the lungs
- 8. Made up of a lot of cells with the same function
- 11. Two pathways into the lungs